How To Fix WB2B2155 - Change of customer is not possible, because of assignment

WB2B2155 - Overview

• Message type: E = Error

• Message class: WB2B2 - Trading Contract (part 2)

• Message number: 155

• Message text: Change of customer is not possible, because of assignment

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 WB2B2155 - Change of customer is not possible, because of assignment ?

  The SAP error message WB2B2155, which states "Change of customer is not possible, because of assignment," typically occurs in the context of SAP Business Partner (BP) or customer master data management. This error indicates that there is an existing assignment or relationship that prevents the modification of the customer data.
  
  Cause:
  
  Existing Assignments: The customer may have existing assignments to other objects (e.g., sales areas, contracts, or other business partners) that restrict changes.
  Data Locking: The customer record might be locked due to ongoing transactions or processes.
  Dependencies: There may be dependencies on the customer data that need to be resolved before changes can be made.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the customer data.
  
  
  Solution:
  
  Check Assignments: Review the existing assignments of the customer in the system. You can do this by navigating to the customer master data and checking for any linked objects or relationships.
  Unlock Data: If