How To Fix /SAPAPO/A1021 - Location &1 is still assigned to model &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/A1 -

• Message number: 021

• Message text: Location &1 is still assigned to model &2

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/A1021 - Location &1 is still assigned to model &2 ?

  The SAP error message /SAPAPO/A1021 Location &1 is still assigned to model &2 typically occurs in the SAP Advanced Planning and Optimization (APO) module when you attempt to delete or change a location that is still linked to a planning model. This can happen during activities such as data maintenance, model configuration, or when trying to delete a location from the system.
  Cause:
  The error indicates that the specified location (denoted as &1) is still assigned to a planning model (denoted as &2). In SAP APO, locations are often associated with various planning models for supply chain planning, and you cannot delete or modify a location that is actively being used in a model.
  Solution:
  To resolve this error, you need to follow these steps:
  
  
  Identify the Assignment:
  
  Use transaction code /SAPAPO/LOC or navigate to the relevant area in the SAP GUI to check the details of the location and its assignments.
  Look for the planning model(s) that the location is assigned to.
  
  
  
  Remove the Assignment:
  
  If you want to delete or modify the location, you first need to remove its assignment from the planning model.
  Go to the planning model configuration (transaction code /SAPAPO/MC8) and find the model that includes the location.
  Remove the location from the model's configuration.
  
  
  
  Check for Other Dependencies:
  
  Ensure that the location is not being used in any other planning scenarios, such as in demand planning, supply network planning, or any other related processes.
  If the location is part of any active planning runs or processes, you may need to wait until those processes are completed.
  
  
  
  Retry the Action:
  
  Once the location is no longer assigned to the planning model, you can retry the action that initially caused the error (e.g., deleting or modifying the location).
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /SAPAPO/LOC: To manage locations.
  /SAPAPO/MC8: To manage planning models.
  
  
  
  Documentation:
  
  Refer to SAP Help documentation for detailed information on managing locations and planning models in SAP APO.
  
  
  
  Support:
  
  If you continue to face issues, consider reaching out to your SAP support team or consulting the SAP community for further assistance.
  
  
  
  By following these steps, you should be able to resolve the error and successfully manage the location in your SAP APO system.