How To Fix /SAPAPO/DC_MSG155 - Assignment exists between characteristics group &1 and character. combin.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DC_MSG -

• Message number: 155

• Message text: Assignment exists between characteristics group &1 and character. combin.

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/DC_MSG155 - Assignment exists between characteristics group &1 and character. combin. ?

  The SAP error message /SAPAPO/DC_MSG155 indicates that there is an assignment conflict between a characteristics group and a characteristic combination in the SAP Advanced Planning and Optimization (APO) module. This typically occurs when there is an attempt to assign a characteristic to a characteristics group that already has an existing assignment or when there are inconsistencies in the characteristic combinations.
  Cause:
  
  Existing Assignment: The characteristics group already has an assignment to a characteristic combination that conflicts with the new assignment you are trying to make.
  Inconsistent Data: There may be inconsistencies in the data related to the characteristics or characteristics groups, such as duplicate entries or incorrect configurations.
  Data Model Issues: The data model in APO may not be correctly set up, leading to conflicts in how characteristics and groups are defined.
  
  Solution:
  
  Check Existing Assignments: Review the existing assignments for the characteristics group and the characteristic combination. You can do this by navigating to the relevant configuration in the SAP APO system.
  Remove Conflicting Assignments: If you find that there is a conflicting assignment, you may need to remove or modify it to allow for the new assignment.
  Data Consistency Check: Perform a consistency check on the characteristics and characteristics groups to ensure there are no duplicate or conflicting entries.
  Reconfigure Characteristics: If necessary, reconfigure the characteristics and characteristics groups to ensure they align with your planning requirements.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing characteristics and characteristics groups in APO.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/CTC (for characteristics) or /SAPAPO/CG (for characteristics groups) to manage and review the configurations.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  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 error and ensure that your characteristics and characteristics groups are correctly configured in SAP APO.