WHMCS 8.3.1: Generate standard invoices instead of Proforma for a specific client group

[m1st]

Hello everyone,

I’m running WHMCS 8.3.1 and I’m trying to determine if there’s a way, perhaps via a hook or another approach, to generate standard (non-proforma) invoices for a specific client group. These invoices need to utilize the `Proforma Invoicing/Sequential Paid Invoice Numbering` setting instead of the `Custom Invoice Numbering` used by proforma invoices by default.

In my testing so far, every time I generate a normal invoice using hooks, it disrupts the numbering sequence for proforma invoices. Has anyone successfully implemented a solution for this scenario or could offer guidance on how to achieve it without breaking the existing proforma numbering? And in keeping standard invoice numbering also working correctly.

Thank you in advance for your help.

[Azhar Patel]

Yes,

That can be possible with custom addon where you can define client for which you want Invoice 
and hook to manage the Invoice Number accordingly 

we can help you with custom deployment, post your complete requirement here 
https://whmcssolution.com/contact

[wsa]

On 3/24/2025 at 3:26 AM, m1st said:

Hello everyone,

I’m running WHMCS 8.3.1 and I’m trying to determine if there’s a way, perhaps via a hook or another approach, to generate standard (non-proforma) invoices for a specific client group. These invoices need to utilize the `Proforma Invoicing/Sequential Paid Invoice Numbering` setting instead of the `Custom Invoice Numbering` used by proforma invoices by default.

In my testing so far, every time I generate a normal invoice using hooks, it disrupts the numbering sequence for proforma invoices. Has anyone successfully implemented a solution for this scenario or could offer guidance on how to achieve it without breaking the existing proforma numbering? And in keeping standard invoice numbering also working correctly.

Thank you in advance for your help.

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