How To Fix /SAPAPO/DMRES169 - Reference resources were assigned to the model

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DMRES -

• Message number: 169

• Message text: Reference resources were assigned to the model

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DMRES169 - Reference resources were assigned to the model ?

  The SAP error message /SAPAPO/DMRES169 indicates that reference resources have been assigned to the model in the SAP Advanced Planning and Optimization (APO) module. This error typically arises when there is an attempt to delete or modify a model that has reference resources linked to it.
  Cause:
  The primary cause of this error is that the model you are trying to modify or delete has reference resources assigned to it. Reference resources are typically used in planning scenarios to represent shared resources across different models or planning areas. If these resources are still linked to the model, the system prevents changes to maintain data integrity.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Reference Resources: Check which reference resources are assigned to the model. You can do this by navigating to the relevant transaction in SAP APO where you can view the model and its associated resources.
  
  
  Remove Reference Resources: If you need to delete or modify the model, you will first need to remove the reference resources. This can usually be done in the model configuration settings. Ensure that you have the necessary authorizations to make these changes.
  
  
  Check Dependencies: Before removing reference resources, ensure that they are not being used in other planning scenarios or models. This will help avoid any unintended consequences.
  
  
  Reassign or Delete: If the reference resources are no longer needed, you can delete them. If they are still required, consider reassigning them to another model or resource.
  
  
  Save Changes: After making the necessary adjustments, save your changes and try to perform the action that initially triggered the error again.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO, such as /SAPAPO/DMRES for resource management, to help navigate and manage resources effectively.
  Documentation: Refer to SAP Help documentation for detailed information on managing models and resources in APO.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address specific issues.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to resolve the /SAPAPO/DMRES169 error and manage your models and resources effectively in SAP APO.