You cannot use the accounting transaction type "Revenue" here

What causes this issue?

You have selected the tab for payments, but selected an accounting
transaction for receipts.

System Response

The system analyzes this inconsistency and waits for your adjustment.

How to fix this error?

Either select a different accounting transaction or change the tab.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.