No further processing is possible after an exception in FINISH

What causes this issue?

After an exception has occurred in <AB>FINISH</>, any further processing
activity can result in data inconsistencies.
Consequently the system does not allow any further processing
activities, such as calculate, save, or release. This applies to dialog
mode as well as background processing.
You may start business transactions but you will not be able to
calculate or complete them.

System Response

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

How to fix this error?

Cancel the current business process.
In the call stack, check whether the trigger for the exception is
located in the standard coding or customer coding.
If the trigger is located in the standard coding, contact SAP.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.