You can check your system's compatibility with PHP from within the Admin Area.
Promotions add discounts to your items for sale. You can configure many types of discount, set up free trials, and create promotion codes.
How to troubleshoot question marks replacing text in PDF invoices and quotes.
Quotes allow you to send estimates to customers. If the customer accepts your quote, you can easily convert the quote into an invoice.
Refreshing directories can help to troubleshoot and resolve some errors.
We plan to permanently remove support for legacy Smarty tags in WHMCS 9.0. You must remove these tags from your customizations.
WHMCS includes a wide range of reports that you can view and export.