How To Fix /SAPAPO/MC01212 - Mapping & is already in use. Change the name

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MC01 -

• Message number: 212

• Message text: Mapping & is already in use. Change the name

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/MC01212 - Mapping & is already in use. Change the name ?

  The SAP error message /SAPAPO/MC01212 Mapping & is already in use. Change the name typically occurs in the context of SAP Advanced Planning and Optimization (APO) when you are trying to create or modify a mapping object (like a key figure mapping, planning area mapping, etc.) that already exists in the system. This error indicates that the name you are trying to use for the mapping is already taken by another mapping object.
  Cause:
  
  Duplicate Name: The most common cause is that the mapping name you are trying to create or modify is already in use by another mapping object in the system.
  System Configuration: Sometimes, the error can arise due to system configuration issues or inconsistencies in the database.
  
  Solution:
  
  Change the Name: The simplest solution is to choose a different, unique name for the mapping object you are trying to create or modify. Ensure that the new name does not conflict with existing names in the system.
  Check Existing Mappings: Before creating a new mapping, check the existing mappings in the system to see if the name you want to use is already in use. You can do this by navigating to the relevant transaction or using the appropriate reporting tools in SAP APO.
  Delete or Modify Existing Mapping: If the existing mapping is no longer needed, you can consider deleting it or modifying it to free up the name. However, be cautious with this approach, as it may affect other processes or configurations that rely on that mapping.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on naming conventions and mapping objects in your version of SAP APO.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO, such as /SAPAPO/MC62 (for managing mappings) or /SAPAPO/MC63 (for displaying mappings).
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that could resolve underlying issues.
  User Authorization: Ensure that you have the necessary authorizations to create or modify mappings in the system, as lack of permissions can sometimes lead to unexpected errors.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP Basis or technical support team for further assistance.