How To Fix GA638 - Only one controlling area can be processed in the allocation

GA638 - Overview

• Message type: E = Error

• Message class: GA - Allocations

• Message number: 638

• Message text: Only one controlling area can be processed in the allocation

What causes this issue?

You want to process multiple controlling areas during one allocation
run.

System Response

This is not supported by the system.

How to fix this error?

Process only one controlling area during each allocation run.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message GA638 - Only one controlling area can be processed in the allocation ?

  The SAP error message GA638 ("Only one controlling area can be processed in the allocation") typically occurs during the allocation process in Controlling (CO) when you attempt to execute a transaction that involves multiple controlling areas. This error indicates that the system is designed to handle allocations for only one controlling area at a time.
  
  Cause:
  
  Multiple Controlling Areas: The most common cause of this error is that the allocation you are trying to perform involves cost centers or internal orders that belong to different controlling areas.
  Incorrect Configuration: There may be a configuration issue where the allocation is set up to include multiple controlling areas inadvertently.
  Data Entry Error: The user may have inadvertently selected or entered data that spans multiple controlling areas.
  
  
  Solution:
  
  Check Controlling Area: Ensure that all the cost centers, internal orders, or other objects involved in the allocation belong to the same controlling area. You can do this by reviewing the