How To Fix PE789 - Assignment strategy & does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: PE - Shift Planning: Messages

• Message number: 789

• Message text: Assignment strategy & does not exist

What causes this issue?

You have chosen "free assignment strategy". However, the strategy you
selected does not exist.

System Response

You cannot make the selection.,,,,,,

How to fix this error?

In the Assignment Strategy field, enter a valid strategy; use the
possible entries help (F4) if required. Alternatively, choose a
different option or choose <zk>Cancel</> to exit the details screen.

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 PE789 - Assignment strategy & does not exist ?

  The SAP error message PE789 typically indicates that there is an issue with the assignment strategy in the system. This error often arises in the context of production planning or materials management, particularly when dealing with the assignment of resources or materials to production orders or other planning activities.
  Cause:
  
  Missing Assignment Strategy: The assignment strategy that is being referenced does not exist in the system. This could be due to a configuration issue or because the strategy has not been defined in the system.
  Incorrect Configuration: The assignment strategy may not be properly configured in the system, leading to the error when the system attempts to use it.
  Data Inconsistency: There may be inconsistencies in the master data or configuration settings that lead to the system being unable to find the specified assignment strategy.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings in SAP (Transaction SPRO).
  Navigate to the relevant area for assignment strategies (e.g., Production Planning or Materials Management).
  Verify that the assignment strategy in question is defined and correctly configured.
  
  
  
  Define Assignment Strategy:
  
  If the assignment strategy does not exist, you may need to create it. This can typically be done in the configuration settings under the relevant module.
  Ensure that all necessary parameters and settings for the assignment strategy are correctly set.
  
  
  
  Check Master Data:
  
  Review the master data related to the materials or resources involved. Ensure that all necessary data is complete and consistent.
  Check if the materials or resources are assigned to the correct assignment strategy.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on assignment strategies and their configuration.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error no longer occurs and that the assignment strategy works as intended.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (for configuration), MD04 (for stock/requirements list), and CO01 (for creating production orders).
  SAP Notes: Check SAP Notes for any known issues or patches related to the PE789 error.
  User Forums: Consider visiting SAP community forums or user groups for additional insights and solutions from other users who may have encountered the same issue.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.