https://docs.whmcs.com/9-1/tags/upgrades/Recent content in upgrades onHugo -- gohugo.iohttps://docs.whmcs.com/9-1/clients/the-affiliate-system/affiliate-system/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/clients/the-affiliate-system/affiliate-system/Explains which order types earn commission, configuring commission settings in General Settings’ Affiliates tab and per-product or per-client overrides, the Affiliate Commission Delay setting, commission reversal behavior on refunds, and commission logic for setup fees, promotions, upgrades/downgrades, and multi-currency conversion.https://docs.whmcs.com/9-1/products/configuration-options/product-configuration-options/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/products/configuration-options/product-configuration-options/Surveys product customization mechanisms: the Shared Hosting, Reseller Hosting, Server/VPS, and Other product types, MarketConnect products for reselling third-party services, client-driven upgrades and downgrades, admin-only or public custom fields, and the decision criteria for choosing configurable options (price-altering, single billing cycle) versus product addons (separately billed, independently selectable one-time items).https://docs.whmcs.com/9-1/products/upgrades-and-downgrades/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/products/upgrades-and-downgrades/Explains the prorata credit/debit calculation using Price Per Day for old and new services, how Next Due Date is set when upgrading a free product to paid, how promotion codes apply to upgrades, and configuring allowed paths on a product’s Upgrades tab.https://docs.whmcs.com/9-1/products/service-tutorials/upgrade-or-downgrade-a-service/Mon, 01 Jan 0001 00:00:00 +0000https://docs.whmcs.com/9-1/products/service-tutorials/upgrade-or-downgrade-a-service/Gives the Client Area steps under Services > My Services to select upgrade options, and the Admin Area steps using More > Upgrade/Downgrade on a service, noting the Admin Area allows selecting products outside the configured upgrade paths and auto-generates a prorata invoice.