How To Fix CY747 - Operation & sub-operation &: Work center was changed manually

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 747

• Message text: Operation & sub-operation &: Work center was changed manually

What causes this issue?

The sub-operation was manually dispatched to the work center &V4& or
rescheduled to it.
The sub-operation was originally to be processed at the work center
&V3& or it was previously dispatched to the work center &V3&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY747 - Operation & sub-operation &: Work center was changed manually ?

  The SAP error message CY747 indicates that there has been a manual change to a work center that is associated with a specific operation and sub-operation in a production order or routing. This error typically arises in the context of production planning and control, where the system expects certain data to remain consistent for the integrity of the production process.
  Cause:
  
  Manual Changes: The work center associated with the operation has been changed manually in the routing or production order, which can lead to inconsistencies in the data.
  Data Integrity Issues: The system may have constraints that prevent changes to work centers if certain conditions are not met, such as open production orders or dependencies on other operations.
  Configuration Issues: There may be configuration settings in the system that restrict changes to work centers under certain circumstances.
  
  Solution:
  
  Review Changes: Check the changes made to the work center. If the change was not intended, revert it to the original work center.
  Check Dependencies: Ensure that there are no open production orders or dependencies that would prevent the change from being valid.
  Use Transaction Codes: Use transaction codes like CO02 (Change Production Order) or CA02 (Change Routing) to review and correct the work center assignment.
  Consult Documentation: Refer to SAP documentation or help files for specific guidelines on work center changes and their implications.
  System Configuration: If the issue persists, consult with your SAP Basis or configuration team to review the settings related to work center changes and ensure they align with your business processes.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that the user has the necessary authorizations to make changes to work centers and production orders.
  Training: Provide training to users on the implications of changing work centers and the correct procedures to follow.
  Testing: If changes are made to the configuration, conduct thorough testing in a development or quality environment before applying changes to production.
  
  By following these steps, you should be able to address the CY747 error and ensure that your production processes run smoothly.