Developer Corner

15128 topics in this forum

1. Remove / Hide Sidebar (Categories, Actions, Currency) on Mobile – Standard Cart

   By kashif rasool, Monday at 10:26 AM
   • 0 replies
   • 113 views
   • 
   • kashif rasool
   • Monday at 10:26 AM

2. logout redirect to login

   By sokalsondha, May 6, 2018
   • 20 replies
   • 38.5k views
   • 
   • Mytihost
   • Friday at 06:41 PM

3. Looking for a truly seamless WHMCS domain search + storefront integration into our main website

   By Justin ROCKET LAUNCHER, March 31
   • 0 replies
   • 71 views
   • 
   • Justin ROCKET LAUNCHER
   • March 31

4. Looking for 10 beta testers – Server Monitor module (WHMCS Marketplace)

   By Soluzioni, March 9
   • 2 replies
   • 434 views
   • 
   • Soluzioni
   • March 27

5. PayPal module shows raw JSON error (“CARD_TYPE_NOT_SUPPORTED”) directly to users — need help sanitizing message

   By JesusSuarz, November 2, 2025
   • 2 replies
   • 1.2k views
   • 
   • wtools
   • March 5

6. WHMCS API (2.0.0)

   By wtools, February 10
   • 0 replies
   • 427 views
   • 
   • wtools
   • February 10

7. Product Group in Invoice Item Description

   By saadsalman, October 4, 2010
   • 14 replies
   • 16.3k views
   • 
   • AndyW
   • February 8

8. Defer payment

   By Mytihost, February 2
   • 5 replies
   • 612 views
   • 
   • wtools
   • February 8

9. Professional Proposals with Deposits, Digital Signatures, and Auto-Order Creation

   By sebaspask, January 31
   • 0 replies
   • 249 views
   • 
   • sebaspask
   • January 31

10. MRR/ARR, Top Clients, Revenue by client, Revenue by product, high maintenance clients Widgets

    By sebaspask, January 31
    • 0 replies
    • 226 views
    • 
    • sebaspask
    • January 31

11. Invoice Numbering Issue

    By kwood, December 14, 2025   

    • invoices
    • 5 replies
    • 1k views
    • 
    • kwood
    • January 15

12. Digital Downloads

    By kwood, January 7
    • 2 replies
    • 639 views
    • 
    • kwood
    • January 8

13. WHMCS Admin Widget: UK TAX Year Income/Profit/Loss

    By ConorBradley, January 6
    • 3 replies
    • 643 views
    • 
    • pjs32
    • January 8

14. Composer to WHMCS

    By jagathks, August 1, 2017
    • 7 replies
    • 8k views
    • 
    • andp97
    • December 30, 2025

15. Order a new service + store links don't get the active class in the menu

    By Negin, December 23, 2025
    • 2 replies
    • 629 views
    • 
    • Negin
    • December 27, 2025

16. WHMCS 9.0 – Upcoming Changes to Module Requirements 1 2

    By WHMCS John, September 10, 2025
    • 36 replies
    • 26.2k views
    • 
    • WHMCS John
    • December 23, 2025

17. Curious problem with GetInvoices API with response totals

    By TBroMEM, December 5, 2025
    • 6 replies
    • 905 views
    • 
    • TBroMEM
    • December 8, 2025

18. How to Programmatically Update Password & 2FA Settings in Latest WHMCS Versions?

    By Dust Tsad, December 5, 2025
    • 0 replies
    • 542 views
    • 
    • Dust Tsad
    • December 5, 2025

19. custom billable items Custom billable items description

    By zitu4life, December 3, 2025   

    • advanced users
    • developer
    • (and 3 more)

      Tagged with:

      • advanced users
      • developer
      • experts
      • managed automation
      • WHMCS
    • 3 replies
    • 768 views
    • 
    • zitu4life
    • December 5, 2025

20. I need HOOK to send an email template on new orders

    By Craft, December 21, 2023
    • 1 reply
    • 949 views
    • 
    • RadWebHosting
    • December 4, 2025

21. doubt on WHMCS SEO

    By Ebin V Thomas, October 6, 2022
    • 6 replies
    • 2k views
    • 
    • Kartik Sharma
    • November 28, 2025

22. Allow community donations to credit a client's WHMCS balance (game server use case)

    By Vulca, October 9, 2025
    • 6 replies
    • 1.5k views
    • 
    • Mytihost
    • November 27, 2025

23. record customer and order details when pay now button is clicked and before the payment is completed

    By Easy Green Hosting, November 18, 2025
    • 0 replies
    • 632 views
    • 
    • Easy Green Hosting
    • November 18, 2025

24. Username generator on new order

    By coophosting, October 24, 2025
    • 2 replies
    • 1.1k views
    • 
    • coophosting
    • November 17, 2025

25. Hook to change existing Smarty variables

    By Julien, February 3, 2025
    • 1 reply
    • 1.3k views
    • 
    • Spaceman1994
    • November 14, 2025