Developer Corner

15129 topics in this forum

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

   By kashif rasool, April 6
   • 2 replies
   • 434 views
   • 
   • sentq
   • April 24

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

   By Justin ROCKET LAUNCHER, March 31
   • 2 replies
   • 219 views
   • 
   • sentq
   • April 24

3. Hook: Client Payment Terms (Immediate / Net 30 / Net 60) by Client Group

   By Manuel Y2K, April 20
   • 0 replies
   • 121 views
   • 
   • Manuel Y2K
   • April 20

4. logout redirect to login

   By sokalsondha, May 6, 2018
   • 20 replies
   • 38.8k views
   • 
   • Mytihost
   • April 3

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

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

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

   By JesusSuarz, November 2, 2025
   • 2 replies
   • 1.3k views
   • 
   • wtools
   • March 5

7. WHMCS API (2.0.0)

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

8. Product Group in Invoice Item Description

   By saadsalman, October 4, 2010
   • 14 replies
   • 16.5k views
   • 
   • AndyW
   • February 8

9. Defer payment

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

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

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

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

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

12. Invoice Numbering Issue

    By kwood, December 14, 2025   

    • invoices
    • 5 replies
    • 1.1k views
    • 
    • kwood
    • January 15

13. Digital Downloads

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

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

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

15. Composer to WHMCS

    By jagathks, August 1, 2017
    • 7 replies
    • 8.1k views
    • 
    • andp97
    • December 30, 2025

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

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

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

    By WHMCS John, September 10, 2025
    • 36 replies
    • 27.2k views
    • 
    • WHMCS John
    • December 23, 2025

18. Curious problem with GetInvoices API with response totals

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

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

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

20. 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
    • 842 views
    • 
    • zitu4life
    • December 5, 2025

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

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

22. doubt on WHMCS SEO

    By Ebin V Thomas, October 6, 2022
    • 6 replies
    • 2.1k views
    • 
    • Kartik Sharma
    • November 28, 2025

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

    By Vulca, October 9, 2025
    • 6 replies
    • 1.6k views
    • 
    • Mytihost
    • November 27, 2025

24. 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
    • 671 views
    • 
    • Easy Green Hosting
    • November 18, 2025

25. Username generator on new order

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