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

SAP Error Message - Details

• 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, certain transactions are designed to handle only primary costs.
  
  
  Solution:
  
  
  Check Posting Type: Ensure that you are using the correct type of cost element for your posting. If you need to allocate costs, consider using primary cost elements or look into using internal orders or other objects that support secondary postings.
  
  
  Review Configuration: 
  
  Go to the configuration settings in SAP (transaction code SPRO) and check the settings for the cost center and cost elements.
  Ensure that the cost center is configured to allow the type of postings you are trying to make.
  
  
  
  Use Alternative Methods: If you need to allocate costs to a cost center, consider using:
  
  Internal Orders: You can post costs to internal orders and then allocate those costs to cost centers using assessments or distributions.
  Cost Allocations: Use cost allocation methods like assessments or distributions to move costs from one cost center to another.
  
  
  
  Consult Documentation: Review SAP documentation or consult with your SAP support team for specific guidance related to your organization's configuration and processes.
  
  
  Related Information:
  
  
  Cost Elements: Understand the difference between primary and secondary cost elements in SAP. Primary cost elements are directly linked to financial accounting, while secondary cost elements are used for internal cost allocations.
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  KSB1: Display actual line items for cost centers.
  KSU5: Execute assessments.
  KSV5: Execute distributions.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP Notes can provide additional insights or patches that may resolve the issue.
  
  
  By following these steps, you should be able to address the GM003 error and ensure that your postings are correctly processed in SAP.