How To Fix AP139 - You can no longer change the controlling area

AP139 - Overview

• Message type: E = Error

• Message class: AP - Investment program messages

• Message number: 139

• Message text: You can no longer change the controlling area

What causes this issue?

You tried to change the controlling area of an investment program
position, although there are already measures assigned to this
position.
Making this change is not possible. The program position and the
measures always have to belong to the same controlling area.

System Response

Changing the controlling area is not allowed.

How to fix this error?

If you want to change the controlling area, you first have to delete
all of the assignments of measures to the position.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AP139 - You can no longer change the controlling area ?

  The SAP error message AP139 ("You can no longer change the controlling area") typically occurs when you attempt to change the controlling area of a company code or a cost center that has already been assigned to a controlling area. This restriction is in place because changing the controlling area can have significant implications for financial reporting and data integrity.
  
  Cause:
  
  Data Integrity: Once a company code or cost center is assigned to a controlling area, it is locked to maintain data integrity. This prevents inconsistencies in financial reporting.
  Transaction History: If there are existing transactions or postings related to the controlling area, the system does not allow changes to avoid disrupting historical data.
  Configuration Settings: The system configuration may restrict changes to the controlling area after certain transactions have been executed.
  
  
  Solution:
  
  Review Current Assignments: Check the current assignments of the company code or cost center to confirm that it is indeed linked to a