How To Fix GM003 - Secondary postings in cost center & are not supported

GM003 - Overview

• Message type: E = Error

• Message class: GM - Combination manager

• Message number: 003

• Message text: Secondary postings in cost center & are not supported

What causes this issue?

Cost center &v1& is blocked for secondary cost postings. The block
indicator has been set in the master record of the cost center for
period(s) &V2&.

System Response

The cost center cannot be used in actual assessment, actual
distribution or actual activity allocation in period(s) &V2&.

How to fix this error?

If necessary, check the block indicators of cost center &v1& via master
data maintenance.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GM003 - Secondary postings in cost center & are not supported ?

  The SAP error message GM003, which states "Secondary postings in cost center & are not supported," typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with internal orders, cost centers, or other controlling objects. This error indicates that the system does not allow secondary postings to a cost center, which is a common restriction in SAP.
  
  Cause:
  
  
  Posting Type: The error usually arises when there is an attempt to post a secondary cost element to a cost center. In SAP, cost centers are generally designed to handle primary cost elements (like expenses) rather than secondary cost elements (like internal allocations).
  
  
  
  Configuration Issues: The configuration of the cost center or the cost element may not allow for secondary postings. This can be due to settings in the controlling area or the specific cost center.
  
  
  Transaction Type: The transaction being executed may not support secondary postings to cost centers. For example,