How To Fix /SAPAPO/OM_SYNC221 - Class assignment of activity differs from class assignment of resource

/SAPAPO/OM_SYNC221 - Overview

• Message type: E = Error

• Message class: /SAPAPO/OM_SYNC -

• Message number: 221

• Message text: Class assignment of activity differs from class assignment of resource

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_SYNC221 - Class assignment of activity differs from class assignment of resource ?

  The SAP error message /SAPAPO/OM_SYNC221 indicates that there is a mismatch between the class assignment of an activity and the class assignment of the resource in the Advanced Planning and Optimization (APO) module. This error typically arises during the synchronization of data between the APO and the SAP ERP system, particularly when dealing with production planning and scheduling.
  
  Cause:
  
  Class Assignment Mismatch: The activity you are trying to assign to a resource has a different class assignment than what is defined for that resource. This can happen if the resource is configured with a specific class type and the activity is assigned a different class type.
  Data Inconsistency: There may be inconsistencies in the master data between the APO and the ERP system, leading to discrepancies in class assignments.
  
  Configuration Issues: Incorrect configuration in the APO system or the resource master data can lead to this error.
  
  
  Solution:
  
  
  Check Class Assignments:
  
  Verify the class assignment of both