How To Fix TPM0107 - Change in no. of units to &1 is not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: TPM0 - TR position management

• Message number: 107

• Message text: Change in no. of units to &1 is not permitted

What causes this issue?

You are attempting to change the data for a single position that was
generated by the transaction activity. The number of units for the
single position is now &V1&.
However, flows with a total of &V2& units have already been assigned to
this single position.

System Response

The change is not possible.

How to fix this error?

Change the number of units for the current transaction activity or
reverse the assigned flows.

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.