Troubleshooting PayPal ‘Invoice Not Found’ error with Subscriptions starting with ‘S-‘ Introduction At the time of this writing (15 November, 2018), we have become…
2Checkout Transactions 30th May – 4th June 2019 Issue We’ve been made aware of a technical issue at 2Checkout which results in some transactions…
How to Shutdown CCAvenue Old Gateway What is Happening? CCAvenue are closing down their legacy API with the endpoint https://www.ccavenue.com/shopzone/cc_details.jsp The more modern M.AR.S…
How to Configure On-Demand Renewals WHMCS 8.8 introduced on-demand renewals for existing services, allowing clients to renew services early, before the system generates the…
How to Configure a Custom Invoice Number Format Each invoice includes a numerical identifier (the invoice number). You can choose to use the system…
How to Create Separate Renewal Invoices for a Client’s Services By default, WHMCS groups service renewal invoices that are due on the same day…
How to Create a Renewal Invoice Early There may be times where a client asks for you to invoice them for the next renewal…
How to Fix and Preserve Customer Invoice Data In some jurisdictions, you may need to fix the client’s name, address, and tax ID to…
How to Change the Address on Invoices in WHMCS WHMCS displays the address that you enter in Pay To Text on the invoices WHMCS generates. You…
How to Change a Client’s Currency in WHMCS WHMCS’s multi-currency system lets clients to choose from one or more currencies. Clients can change their…