If your customers are unable to select invoices for payment in the customer portal, it’s likely due to your current portal settings.
To enable invoice selection and payment functionality, an admin user must update the settings by following these steps:
Go to Settings > Customer Portal
Ensure one or both of the following options are enabled:
✅ Allow one-time payments
✅ Allow to charge payment method on file
What Each Option Does:
Allow one-time payments: Lets customers manually select and pay open invoices using a payment method of their choice.
Allow to charge payment method on file: Enables charging invoices automatically using a saved payment method.
Once at least one of these options is activated, customers will be able to select invoices and proceed to payment directly from the portal.
Note: Changes take effect immediately and apply to all customers using the portal.