A cron job that checks all clients with a credit balance and Unpaid invoices, and applies the credit to the Unpaid invoices from oldest to newest.
No special server configuration needed. Requires PHP 5.6+ and WHMCS 6.0 or newer.
It is $7.50 quarterly with free support & updates for as long as your service is Active.
Download the zip file from our client area and follow the instructions in the INSTALL.txt file included.
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The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.
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