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Developer Corner

Integration, customization and module development, if you have questions, ask them here.

15126 topics in this forum

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

    By Soluzioni,
    • 0 replies
    • 52 views

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

    By JesusSuarz,
    • 2 replies
    • 1.1k views

  3. WHMCS API (2.0.0)

    By wtools,
    • 0 replies
    • 379 views

  4. Product Group in Invoice Item Description

    By saadsalman,
    • 14 replies
    • 12.8k views

  5. Defer payment

    By Mytihost,
    • 5 replies
    • 510 views

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

    By sebaspask,
    • 0 replies
    • 190 views

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

    By sebaspask,
    • 0 replies
    • 178 views

  8. Invoice Numbering Issue

    By kwood,   
    • 5 replies
    • 974 views

  9. Digital Downloads

    By kwood,
    • 2 replies
    • 590 views

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

    By ConorBradley,
    • 3 replies
    • 597 views

  11. Composer to WHMCS

    By jagathks,
    • 7 replies
    • 8k views

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

    By Negin,
    • 2 replies
    • 588 views

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

    By WHMCS John,
    • 36 replies
    • 25.3k views

  14. Curious problem with GetInvoices API with response totals

    By TBroMEM,
    • 6 replies
    • 839 views

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

    By Dust Tsad,
    • 0 replies
    • 496 views

  16. Custom billable items description

    By zitu4life,   
    • 3 replies
    • 716 views

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

    By Craft,
    • 1 reply
    • 917 views

  18. doubt on WHMCS SEO

    By Ebin V Thomas,
    • 6 replies
    • 2k views

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

    By Vulca,
    • 6 replies
    • 1.4k views

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

    By Easy Green Hosting,
    • 0 replies
    • 594 views

  21. Username generator on new order

    By coophosting,
    • 2 replies
    • 1k views

  22. Hook to change existing Smarty variables

    By Julien,
    • 1 reply
    • 1.2k views

  23. Payment Gateway Fee

    By sol2010,
    • 21 replies
    • 5.4k views

  24. WHMCS 8.8 - Hide $0.00 and Paid Invoices from Client Area Notifications (Freemium 3 Theme)

    By Ali C,
    • 0 replies
    • 468 views

  25. Direct link to view email

    By SeanP,
    • 1 reply
    • 522 views
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