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This new "feature" is terrible and is a fundamental change. This feature does not conform to most businesses and should be an option if there are other regulatory purposes in other countries. It severely limits the flexibility of the system and limits its function. I highly recommend a switch to disable this new "feature".

Glad to see more customers speaking up about this… it’s a simple, fixable issue. All they need to do is keep allowing the switch: Add ($allow_adminarea_invoice_mutation = true;) in your WHMCS configuration.php . WHMCS choosing a one-size-fits-all strict model is what’s really causing the pain… let us decide if we need to deal with regional compliance and added accounting complexity, not force it on everyone.

A system should be designed to be functional for its paying customers, rather than being dictated by external regulations that may or may not be applicable to all users. Implementing such a feature without a proper disable option is impractical and appears to be an oversight. The current suggested workarounds are ineffective for the majority of standard web design and hosting businesses. Remember, most projects start off with two 50% (published) invoices (deposit and final) from the quote when converted and the final invoice typically gets tweaked for various reasons. This change would prevent that quick 10 second update to it. WHMCS should focus on developing efficient software that delivers value to its users, allowing us to manage legal compliance independently, rather than introducing features that hinder usability.

Yes, I agree they should be an option

While I understand that bugs are part of any Release Candidate cycle, it's concerning that we are still discussing basic optimization issues like proper OPcache support. And let's not even get started on the fact that we still don't have 100% native Nginx support. This becomes particularly ironic with the introduction of the new WHMCS Cloud Solution. With cloud hosting, the resource costs are on their side, so you'd think they'd be rushing to support Nginx to reduce their own infrastructure expenses. It's like being sold a high-performance engine but being told you have to power it with hamster wheels. Maybe once their bills start rolling in, Nginx support will suddenly become a priority. This all points to the bigger issue: the development velocity. Core development feels like it's just about "keeping the lights on" (PHP/ionCube updates) rather than actual innovation. This stagnation has allowed third-party developers like ModulesGarden to build entire businesses by selling us functionality that should have been in the core a decade ago. When you look at the "Total Cost of Ownership" license fees + necessary third-party modules, the value proposition is slipping. Newer platforms like Upmind are entering the market with an API-first architecture and modern features built-in from day one. If WHMCS continues to outsource innovation to the community while raising prices for maintenance updates, that competitive threat is going to become an exodus very quickly. We need core features that match the modern hosting landscape, not just compatibility patches.

Yeah this is a nightmare

This is what one WHMCS Staff tell me You have the option to make the change to your WHMCS configuration.php file and add the line $allow_adminarea_invoice_mutation = true;, but it is your decision whether to do so. When this line is present in your configuration.php file, the system will permit most of the changes to invoices that existed before WHMCS version 9.0, notably: Line items can be changed for invoices in any status (when in the "Manage" mode and with the correct admin user permissions set). All attributes are available in the Options tab regardless of the invoice status (when in the "Manage" mode and with the correct admin user permissions set). Payments can be applied in the Add Payment tab regardless of the invoice status (with correct admin user permissions set). Please note that using this configuration line ($allow_adminarea_invoice_mutation = true;) in your WHMCS configuration.php The file is highly discouraged, as it may permit changes that are not compliant with regional/country business regulations and complicate accounting. To bring awareness of this, a Warning health check will appear in the System Health Check summary when the value is present in your WHMCS configuration.php file. Additionally, all “full administrators” will see an Admin Warning banner (which can be dismissed up to every fortnight). You may want to add it temporarily if you do need to make the changes listed above, which were changed in WHMCS version 9.0 to improve invoice management and ensure tax compliance by keeping invoice records consistent. If you do not see any warnings or have issues with editing invoices or changing their status when this line is added, please let us know. Starting with WHMCS version 9.0, non-Draft invoices are immutable. This means you cannot edit transactions (now listed under the Ledger section on the invoice), add or remove items, or modify descriptions on an invoice once it’s no longer in the "Draft" status. This change is intended to improve invoice management and ensure tax compliance by keeping invoice records consistent. For more information on invoice management in WHMCS version 9.0, please refer to the following documentation: https://docs.whmcs.com/9-0/billing-and-invoicing/invoice-management/

I never imagined that a simple update could introduce so many problems — and even worse, apparently without proper testing. It is absolutely ridiculous for a financial management system to have its own financial logic broken. In the last 24 hours, I finally received a response on the open support ticket, along with a so-called “patch” (attached). In practice, this patch only fixes the reports by hiding the incorrect ledger entries. However, in several other areas of the system, the incorrect postings are still happening. For example, the “Transactions” tab inside the client profile continues to show wrong values and misleading entries. So, in short, this patch does not actually fix the root problem — it only masks it in specific reports. For now, apply it if you want to slightly reduce the visible impact, but be aware that the financial logic is still broken in multiple parts of the system. At this point, we are seriously considering rolling back to a previous version — or even migrating away from WHMCS entirely. Year after year, the pricing increases exponentially, while the quality of support continues to decline and critical issues like this keep happening. The current level of instability and support simply does not justify the price they are charging anymore. whmcs_v9.0.0-supporthotfix.1_750a0b77ff.321_WHMCS-24949.zip

Hi WHMCS ecosystem developers! I am excited to share an early heads-up about the upcoming WHMCS 9.0 release by the end of 2025 - a major update that brings important changes to the platform’s technical requirements. As part of this release, several core dependencies will be updated, and minimum system requirements will be increased. These changes are designed to improve performance, security, and compatibility with modern PHP standards. Key Updates in WHMCS 9.0: Minimum PHP version: 8.2 Recommended PHP version: 8.3 Minimum ionCube Loader version: 13.0.2 or higher Recommended ionCube Loader version: 14.4.0 or higher Updated dependencies: A number of underlying libraries and components have been upgraded. Some notable changes include: Smarty v3.1.48 —> v4.3.4 Legacy Smarty Tags are being deprecated and will no longer function in 9.0. Smarty Template Objects (including their use in plugins) will no longer be supported. guzzlehttp v7.4 —> v7.4.5 illuminate v7.x —> v9.0 I have attached a provisional list of dependency changes to this post. Please also use this thread to provide your feedback and ask questions of the Development Team regarding these requirement and dependency changes. These changes will require action from module developers to ensure continued compatibility. We recommend reviewing your module code and preparing for updates ahead of the release. We’ll be sharing more details, including a release window, definitive changelog and developer guidance, between now and the end of 2025 to help you get ready. Thank you for being a valued part of the WHMCS ecosystem. We appreciate your continued support and look forward to working together to make WHMCS 9.0 a successful release. whmcsv90_composerlock_provisional.txt

Okay, maybe I was too quick about credit notes. It seems a lot of the features are "coming soon™️". This is not a Release Candidate lol. This is not even alpha. This is internal development. Nothing can convince me that this release didn't just happen because WHMCS promised us a release in December.

I’ve added: $allow_adminarea_invoice_mutation = true; Honestly, this change is a nightmare for our daily workflow. We need to edit invoices every day, and with this new restriction, what used to be a simple operation has become an everyday problem. In my opinion, this was a very bad decision from a usability point of view, especially for companies that manage billing operations daily and need flexibility when handling invoices.

Not everyone wants SAAS solutions, or keeping data with a third party due to concerns about client data. I'm one of those businesses.

Request WHMCS to make it a confugurable option instead of removing it?

The one question I have is "why"? Clearly there's a need and demand for it, why is it not even considered being made optional, with warnings about not doing it or what have you. Why is it simply removed, with no options and so on.

Whats stupid is as a developer this is as simple as adding a checkbox to the config to allow us to choose ourselves. I've never in my life understood why software companies lock you in, instead of giving you the option. You keep increasing prices year after year and you want us to stay with you, but if you keep doing this crap most of your base is not gonna find value in your ever increasing prices.

Welcome to the common sense reasons why were frustrated about WHMCS enforcement of preventing us from editing our OWN invoices we created in the first place. Credit / debit is useless in real world standard practice. If they want to provide a switch to disable editing published invoices or changing status fine, but dont force it on the customer base. That's dumb.

Are there still issues after the 9.0.3 release?

add this line to your configuration.php it will go back to normal behavior $allow_adminarea_invoice_mutation = true;

Thank you for the terrible WHMCS support. This is now the tenth client who has made a bulk payment and the late fee is simply not added to the invoice, and none of the outstanding invoices are automatically marked as paid. I’m not even going to mention the credit and debit issues anymore, because it seems the WHMCS developers themselves don’t even know what they’re doing. Does anyone have a suggestion for another system similar to this garbage?

I think you guys may be dramatically underestimating what AI is capable of, but I suppose we shall see. As for the post being suitable or not, Webpros has done everything in their power to alienate their client base - this type of post is the inevitable consequence of that.

"Luck" isn't really a component here. If you haven't played around with agentic coding I can see why this would seem like a stretch for you, but it's quite trivial to get a fairly simple billing system up and running quite rapidly. And like I said this is with current-level tools, in a year or two, replicating the entirety of WHMCS would likely be very doable.

Yeah, except for adding AI to domain search, this release doesn't really provide on any of the other promises. Credit notes doesn't work either. When you cancel an invoice, WHMCS just adds a transaction to the invoice. If the invoice has a total of $100, WHMCS just adds a transaction of $100 and cancels the invoice. There's no credit note or anything.

How WHMCS have set this as a RC instead of a Beta is insane. It's a huge upgrade in terms of it's impact on themes/modules. No beta, no reply from WHMCS, no forums specific to v9.

Your process sounds good apart from WHMCS. I would never recommend trying to import tables to new files. You need to update your existing install as normal. You can update from your version but you may have more luck doing a manual update. Backup everything, upload the new v8.13 files, adjust your hosting/server settings to meet the requirements (e.g you may need to update PHP) then run the installation script.

@BENELUX, Today's the day!! https://blog.whmcs.com/133775/whmcs-90-release-candidate-out-now

This week or next! It sure would be nice to double the size of the engineering team temporarily for one release every few years!

@stormy, I'm glad to hear the e-invoicing feature will be a real value add for you. We are working with expert solution-providers in this space, so we're confident about delivering an easy to use and compliant solution with the broadest coverage. @andp97, Yes, by the end of the year in a pre-release version of WHMCS you will have access to this new feature. This bullet point actually describes two significant features which we're very excited about: 1. A RESTful API which provides access to the product catalogue and shopping cart logic. This will provide a suite of new endpoints to get product catalogue information, add, manipulate and get information about items in the cart (including price breakdowns and totals) and much more, all without touching the cart.php file or PHP session data. This means that power users could create their own highly-bespoke frontends whilst WHMCS handles the maths in the background, before seamlessly passing visitors to the checkout page to complete payment. 2. A brand new thin client powered by the aforementioned new API capabilities, providing a thoroughly modern purchase experience based on Vue.js. I've attached a sneak peak below. The new BuyFlow is a compiled Single-page application, meaning the layout isn't manipulated through templates, but you will be able to customise the colours to match your theme through a custom.css overrides file. The shopping cart as it exists today (cart.php and order form templates) isn't going away and will still be available if you'd like to stay with the familiar experience. Stay tuned to our blog and socials over the coming weeks for more information!

Hi @venkat.j, The current latest version is 8.13. This behaviour suggests the dates were set to 00/00/0000, either by an admin (in which case there should be an entry in the client's Log tab) or by a rogue after-market module (in which case there probably wouldn't). You can edit the date fields to set the actual dates and click Save Changes. The correct dates will be stored.

Hello, Not at all and it's highly recommended, to change the admin path.

@WHMCS John If you want this to be the new default Stripe module, a migration path from the current default Stripe module will be necessary.

Marked the task as done, and on the domainsync that followed it updated correctly. One would have thought paying the invoice would be the trigger for updating the next invoice due date. Strange.

You should reinstall the vendor directory for the WHMCS version you are running

@WHMCS John Can you please clarify?

Hello Everyone, We are currently using WHMCS version 9.0.1 and after upgrading, we have noticed two issues related to invoice management and staff permissions. We would appreciate clarification from the community. Unpaid Invoice Cannot Be Edited When trying to modify an unpaid invoice, the system shows: "This is an Unpaid Invoice. You cannot modify an Invoice that is Unpaid." Previously, we were able to edit unpaid invoices in cases of pricing corrections, tax adjustments, or client-requested changes. We are unable to find any setting that allows editing unpaid invoices in version 9.0.1. Is this now the intended behavior? Is there any supported method to allow editing unpaid invoices without marking them as paid first? Cancel Invoice Permission Requires Delete Permission We assign the "Cancel Invoice" permission to specific employees so they can cancel invoices when there are billing errors or mismatches. The cancel action keeps proper logs and maintains an audit trail, which is important for internal control. However, it appears that the Cancel Invoice permission now requires the Delete Invoice permission to function. This forces us to grant both Cancel and Delete permissions. This creates a concern because if Delete permission is given, staff may delete invoices instead of cancelling them. Deleted invoices do not provide the same level of audit visibility, and it becomes difficult to track what was removed and why. Our requirement is to allow invoice cancellation with proper logging, but not allow invoice deletion. Has anyone else faced this in 9.0.1? Is this expected behavior, or is there a way to separate Cancel and Delete permissions properly? Looking forward to feedback from the community. Thanks in advance.

And it was...?

Hi John. Is there any further news on the ETA for this release?

Growing a business with limited resources is tough, but the right marketing tools can make it much easier. They help you save time, avoid doing the same tasks over and over, and keep everything in one place so you're not constantly jumping between different apps. Think about all the things that go into marketing: setting up a website, posting on social media, sending emails to customers, and keeping track of projects. Doing all of that manually takes a lot of time. But with the right tools,...View the full blog post

Another year another price increase for all WHMCS licenses. The question is has there been any updates to the software that justify the rising costs? The only change I've seen this year that was actually welcome was ironically a feature that existed but was removed. That being the ability to directly change client passwords. I can't think of anything else from memory. Anyone else?

Also using custom.css for the theme's variables defeats the purpose of custom.css, it's now going to be replaced for every update. v9 screams minimal effort, rushed with no regard for users. If they don't care why should we?

Hello, It’s clear that there is an issue with your database configuration. First, try connecting to the MySQL database using the credentials provided in your configuration.php file and check whether the connection is successful.

Its solved and the login issue due to the PHP session storage location was incorrect:

Your idea is technically doable in WHMCS, but there are some important fiscal and accounting issues to be aware of. The main challenge is that the money would come from someone who is not your client, while the credit is assigned to a third party (your actual client). This creates a mismatch between the payment and the service, meaning you would legally need to issue a receipt or invoice to the donor even though the benefit goes to someone else. On top of that, VAT and taxes can get tricky. If the donation is treated as payment for a service, VAT normally applies, but calling it a "pure donation" isn't straightforward, since the money is effectively being used to pay for another person's services. And when your client eventually uses the credit to pay for their server, that counts as a separate transaction requiring its own invoice, which could create accounting confusion or even potential tax issues (double taxation) if not handled carefully. So, while WHMCS can handle the technical side, the real challenge is making sure this setup is compliant from a fiscal perspective. That being said, personally I would avoid playing with real money. Instead I'd create an alternative currency (credits, tokens or coins) that donors purchase and for which you issue an invoice. The beneficiary who receives the donation can then use those tokens at payment time to reduce the total of an invoice, for example by redeeming a discount coupon that adds a negative line on the invoice. That way you avoid the mismatch of receiving money from one party and assigning credit to another, and you eliminate the risk of double invoicing or double VAT payments.

We won't go cloud. Kayako burned us with that and SupportPal is brilliant. Where's the announcement?

Hi @Sudipto Mahmud, Yes the auto-updater will update files with a customised admin and crons directories. For more information see: https://docs.whmcs.com/getting-started/configuring-whmcs/enhancing-security/#5-rename-the-whmcs-admin-area-directory

YOU CAN USE MY EMAIL DESIGN FOR YOUR COMPANY, THANKS TO THIS COMMUNITY I HAVE FOUND A LOT OF COMMUNITY CONTENT, SO I GIVE YOU MY PERMISSION TO USE IT. Post Update: After a long time working on the code, I have managed to get it to look correct. There were many problems that I am going to name now, which I fixed to make it display correctly; Global Email CSS Styling: Some generic tags will not work, for example 'body', instead of adding it to Global Email CSS Styling, I added it directly to the HTML code to make it work. Error ❌ body{font-size: 17px; line-height: 25px; color: #f1f1f1; font-family: 'Open Sans', sans-serif; font-weight: 400; margin: 0px; background-color: #070B41;} Solution ✅ <body style="font-size: 17px; line-height: 25px; color: #f1f1f1; font-family: 'Open Sans', sans-serif; font-weight: 400; margin: 0px; background-color: #070B41;"> Sometimes you have to add an '!important' to the CSS code, because another tag is replacing it. For example, I wanted to put links with a different color and no style; Error ❌ a{text-decoration: none; color: #1094F0;} Solution ✅ a{text-decoration: none!important; color: #1094F0!important;} Some images on some providers do not load correctly because it can detect that the domain is not secure. For example; Error ❌ https://universalgg.com/assets/img/mails/logo.svg Solution ✅ https://i.imgur.com/7nQbkxQ.png It has taken me a long time to investigate, since on localhost it was working correctly. I have tried various SMTP providers and it was working fine too. Conclusion: The error is from WHMCS and not from my design, but it can be solved. All code: <!DOCTYPE html> <html> <head> <title></title> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> <link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700&display=swap" rel="stylesheet"> <style> .main-table{background-color: rgb(3 5 33 / 87%); border-radius: 20px; overflow: hidden; margin-top: 20px;} .content-table{padding: 50px 40px 50px 65px;} .h1-table{padding-bottom: 25px; font-size: 22px; font-weight: 700; color: #fff;} .btmspace-table{padding-bottom: 30px;}.top-line{padding-top: 30px;} .grey-line{border-top: 1px solid #707070;} .welcome-img{width: 50%; background-image: url('https://universalgg.com/assets/img/mails/img.webp'); background-position: left; background-size: cover; background-repeat: no-repeat;} .welcome-copyright{color: #DDDDDD; font-size: 12px; text-align: center;} a{text-decoration: none!important; color: #1094F0!important;} </style> </head> <body style="font-size: 17px; line-height: 25px; color: #f1f1f1; font-family: 'Open Sans', sans-serif; font-weight: 400; margin: 0px; background-color: #070B41;"> <table width="1140" border="0" align="center" cellpadding="0" cellspacing="0" class="main-table"> <tr> <td> <table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="content-table"> <tbody> <tr> <td colspan="2" style="padding-bottom: 35px;"> <img src="https://universalgg.com/assets/img/mails/logo.svg" style="max-width: 430px;" width="100%" height="auto" alt="logo"> </td> </tr> <tr> <td colspan="2" class="h1-table"> ¡Bienvenido! </td> </tr> <tr> <td colspan="2" class="btmspace-table"> Hola {$user_first_name}, revisa este correo electrónico en su totalidad, ya que contiene información importante. </td> </tr> <tr> <td colspan="2" class="btmspace-table"> Has registrado tu cuenta el día {$user_signup_date}. Necesitarás tu dirección de correo electrónico y la contraseña que elegiste durante el registro, para iniciar sesión.</br> Si creó la cuenta como parte de la realización de un nuevo pedido con nosotros, en breve recibirás un correo electrónico de confirmación del pedido. </td> </tr> <tr> <td colspan="2"> Por favor, no responda a este mail, es un mensaje automático. Le enviamos un cordial saludo, gracias por confiar en nosotros. </td> </tr> </tbody> </table> <table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="top-line"> <tbody> <tr> <td class="grey-line"></td> </tr> </tbody> </table> <table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" style="padding: 30px 40px 30px 65px;"> <tbody> <tr style="vertical-align: middle;"> <td style="padding-bottom: 20px; font-size: 15px; font-weight: 500; color: #1094F0;"> <a href="https://universalgg.com">Sitio web</a>&nbsp; | &nbsp; <a href="{$whmcs_url}">Área de clientes</a>&nbsp; | &nbsp; <a href="mailto:info@universalgg.com">Contactar</a> </td> <td style="padding-bottom: 13px; text-align: right;"> <a href="https://twitter.com/UniversalGamg"><img src="https://universalgg.com/assets/img/mails/s_twitter.svg" style="display: inline-block; margin-right: 15px;" alt="icon"></a> <a href="https://www.instagram.com/universal_gg/"><img src="https://universalgg.com/assets/img/mails/s_instagram.svg" style="display: inline-block; margin-right: 15px;" alt="icon"></a> <a href="https://discord.gg/nMxTQ5UZpM"><img src="https://universalgg.com/assets/img/mails/s_discord.svg" style="display: inline-block; margin-bottom: -1.5px;" alt="icon"></a> </td> </tr> <tr> <td colspan="2" class="welcome-copyright"> 2018-2023 &#169; {$company_name} </td> </tr> </tbody> </table> </td> <td class="welcome-img"></td> </tr> </table> </body> </html>

It's possible to do . A query like this will do it: $productid = "INSERT PRODUCT ID HERE"; foreach (Capsule::table('tblhosting')->WHERE('packageid', '=', $productid)-> WHERE('domainstatus', '=', 'Active')->get() as $orderlist) { $userid = $orderlist->userid; $server = $orderlist->server; $domain = $orderlist->domain; $paymentmethod = $orderlist->paymentmethod; $billingcycle = $orderlist->billingcycle; $nextinvoicedate = $orderlist->nextinvoicedate; $amount = $orderlist->amount; print ("$userid: $server : $domain: $paymentmethod: $billingcycle: $nextinvoice: $amount<br />"); } Implementation is going to be on you, but this will get you started

And what exactly is the issue? I am guessing it is doing the infinite login loop without saying if the login was good or not. If so, that is indeed sessions or cookie issues . If the server's sessions are working, then check that your session cookies are actually being saved.

I was reading the documentation about the "Order Days Grace" that is located under General Settings > Ordering with the description "The number of days to allow for payment of an order before being overdue." I was wondering if this could be used to, in effect, create Net 30 or Net 15 billing, where the due date is set 30 or 15 days after the order is placed. Based on the documentation, I believe this achieves that. And it appears that the domain grace and redemption period is managed separately under General Settings > Domains. I would like to confirm that: The "Order Days Grace" only applies to product and service invoices, and not domains. That domain grace / redemption periods are managed separately from this setting. All future invoices for renewals also have the same grace period. Also, is there any way to do the following? Only allow approved customers to have a grace period on invoices. My goal is to allow approved vetted customers Net 30 billing for products and services (but NOT domains), while everyone else must pay in advance. Is there any way to set it up like this?

by the time the hook is adding the code, the smarty will have already been processed - so adding smarty that you expect to do anything is not worth it... the way to think of it is to create the content of the replacement and pass that via the jQuery - don't think of it as the template contains {$tag1} and so I can just replace it with {$tag2}... what you do is replace the content of {$tag1} with a predefined replacement value - could be text, html etc.. and more importantly, assumes that you can locate the specific position of the content you want to replace in the hook - with WHMCS, that might not always, and sadly too often, be the case. replacing content with jQuery is not a magic bullet solution - at a push, i'd use it in a small limited way, but I wouldn't use it to make wholesale changes to a client area template, certainly not a cart template, unless it was a last resort. if you take your footer hook and replace the copyright content... <?php add_hook('ClientAreaHeaderOutput', 1, function($vars){ $footer = '<script>$(document).ready(function() { $("#footer .container").replaceWith("<div class=\"container\"><h2 style=\"color:red;\">New Copyright Footer</h2></div>"); });</script>'; return $footer; });

which is the definition of a lookup provider. all i'm saying is that WHMCS 7 is designed to either use whois, or a lookup provider, for ALL TLDs - you can't mix and match, e.g this module for .ge, but whois for .com - you have to put all your eggs in one basket.