Customers can't pay invoices with PayPal

[aziom]

I have PayPal as a payment option in WHMCS. I have had a number of clients pay their initial orders with PayPal but none have paid their renewal invoices with the service.

 

Today I logged in as a client to pay an invoice by PayPal and I can't see how to initiate the payment. In the Client Area I can select invoice to be paid and it displays the invoice but their is no button to pay the invoice. I'm using the default invoice template.

 

There is a drop down menu under the word "Unpaid" with one option "PayPal". Selecting PayPal from the drop down does nothing.

 

Have I done something wrong with the setup or is this a bug?

[aziom]

I found another post in the forums that fixed the problem but the solution is not ideal:

 

Under Setup > Payments > Payment Gateways, tick "Force One Time Payments" and unstick "Force Subscriptions".

 

That didn't work, so I added another payment option "Bank Transfer". That adds another option to the drop down menu on the invoice and now when the client selects PayPal that pay now button appears.

 

This looks like a bug with WHMCS where you have to use at least two payment options for PayPal to work.