https://docs.whmcs.com/9-1/tags/modules/Recent content in modules onHugo -- gohugo.iohttps://docs.whmcs.com/9-1/troubleshooting/start-troubleshooting/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/troubleshooting/start-troubleshooting/Lists basic troubleshooting steps (check system logs and the Module Queue, enable Error Reporting and SQL Debug Mode, review General/Automation/Products/Servers settings, refresh directories and update modules) and advanced steps (disable hooks individually, set an addon module directory to 000 permissions, run the system cron manually).https://docs.whmcs.com/9-1/admins/apps-and-integrations/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/admins/apps-and-integrations/Covers the Featured, Browse, Active, and Search tabs for finding apps and integrations, viewing an app’s details (category, developer, version), and the Activate, Manage, and Get it from the WHMCS Marketplace actions.https://docs.whmcs.com/9-1/admins/notifications/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/admins/notifications/Covers configuring Slack and Email notification providers, creating notification rules with events and conditions, enabling/editing/duplicating/deleting rules, and self-hosted customization using the NotificationPreSend hook and the TriggerNotificationEvent API function for custom events.https://docs.whmcs.com/9-1/customization/create-admin-dashboard-widgets/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/customization/create-admin-dashboard-widgets/Describes creating custom Admin Dashboard widgets by defining a function that returns a title and content array, registering it through the AdminHomeWidgets hook, and locating the open-source default widget code in the /modules/widgets folder for reference or customization.https://docs.whmcs.com/9-1/customization/custom-modules/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/customization/custom-modules/Covers the module template override directory structure for customizing provisioning, addon, and payment gateway module templates within a custom theme, version-specific templates for Bootstrap 3 (Six) versus Bootstrap 4 (Twenty-One) themes, service properties for storing key/value data via serviceProperties save() and get() methods, the list of reserved core field names (Username, Password, Domain, License Key, and others), and defining DefaultNonSSLPort and DefaultSSLPort in a module’s MetaData function.https://docs.whmcs.com/9-1/troubleshooting/general-troubleshooting/module-command-unknown-errors/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/troubleshooting/general-troubleshooting/module-command-unknown-errors/Addresses the “An unknown error occurred” module command error caused by a third-party system or module returning a response WHMCS cannot interpret, and directs checking the Module Log under System Logs to identify the exact cause.https://docs.whmcs.com/9-1/troubleshooting/module-queue/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/troubleshooting/module-queue/Describes the Module Queue list at Utilities > Module Queue, its columns (client, service or domain, action, error, time), and the Retry, Retry All, and Mark Resolved actions for reattempting or dismissing failed automated module actions.https://docs.whmcs.com/9-1/payments/payment-gateway-tutorials/copy-a-gateway-module/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/payments/payment-gateway-tutorials/copy-a-gateway-module/Shows how to copy banktransfer.php or a similar open-source gateway file, rename its _config and _link functions and FriendlyName value (using a banktransfercopy.php example), and upload the renamed file to the /modules/gateways/ directory on self-hosted installations.