Developer Corner

15135 topics in this forum

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

   By Vulca, October 9, 2025
   • 10 replies
   • 2.4k views
   • 
   • joeroot6543
   • 23 hours ago

2. Segmentation fault using ionCube Loader v15.5.0, PHP 8.3+ and xDebug v3.5.0

   By andp97, May 19
   • 2 replies
   • 1.1k views
   • 
   • PapaKai
   • July 28

3. Admin Panel's Client List. Close account from list

   By Giorgi Tedoradze, July 8
   • 0 replies
   • 776 views
   • 
   • Giorgi Tedoradze
   • July 8

4. logout redirect to login

   By sokalsondha, May 6, 2018
   • 21 replies
   • 40.2k views
   • 
   • Mytihost
   • June 27

5. Hide date range in invoice emails - on new domain name orders

   By cluster, June 10
   • 3 replies
   • 898 views
   • 
   • cluster
   • June 13

6. [MODULE] EchoCall: The Ultimate White-Label Voice & Chat AI for WHMCS Resellers – 200ms Latency & Global Edge Hosting

   By EchoCall, June 12
   • 0 replies
   • 240 views
   • 
   • EchoCall
   • June 12

7. Hide admin sidebar by default

   By bear, May 23
   • 8 replies
   • 1.5k views
   • 
   • DennisHermannsen
   • May 29

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

   By Soluzioni, March 9
   • 4 replies
   • 912 views
   • 
   • CS-Design
   • May 25

9. minIO WHMCS module for admins with user

   By Marlin Todd, May 2
   • 0 replies
   • 1.3k views
   • 
   • Marlin Todd
   • May 2

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

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

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

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

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

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

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

    By JesusSuarz, November 2, 2025
    • 2 replies
    • 1.7k views
    • 
    • wtools
    • March 5

14. WHMCS API (2.0.0)

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

15. Product Group in Invoice Item Description

    By saadsalman, October 4, 2010
    • 14 replies
    • 17k views
    • 
    • AndyW
    • February 8

16. Defer payment

    By Mytihost, February 2
    • 5 replies
    • 1.2k views
    • 
    • wtools
    • February 8

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

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

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

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

19. Invoice Numbering Issue

    By kwood, December 14, 2025   

    • invoices
    • 5 replies
    • 1.7k views
    • 
    • kwood
    • January 15

20. Digital Downloads

    By kwood, January 7
    • 2 replies
    • 1.1k views
    • 
    • kwood
    • January 8

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

    By ConorBradley, January 6
    • 3 replies
    • 1.2k views
    • 
    • pjs32
    • January 8

22. Composer to WHMCS

    By jagathks, August 1, 2017
    • 7 replies
    • 8.8k views
    • 
    • andp97
    • December 30, 2025

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

    By Negin, December 23, 2025
    • 2 replies
    • 1.1k views
    • 
    • Negin
    • December 27, 2025

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

    By WHMCS John, September 10, 2025
    • 36 replies
    • 32.1k views
    • 
    • WHMCS John
    • December 23, 2025

25. Curious problem with GetInvoices API with response totals

    By TBroMEM, December 5, 2025
    • 6 replies
    • 1.5k views
    • 
    • TBroMEM
    • December 8, 2025