How To Fix WB2B2121 - Assignment exists. The field &1 of the shadow item cannot be changed.

WB2B2121 - Overview

• Message type: E = Error

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

• Message number: 121

• Message text: Assignment exists. The field &1 of the shadow item cannot be changed.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WB2B2121 - Assignment exists. The field &1 of the shadow item cannot be changed. ?

  The SAP error message WB2B2121 indicates that there is an issue with the assignment of a shadow item in a business transaction, typically related to the handling of materials or products in the SAP system. The message specifically states that the field &1 of the shadow item cannot be changed because an assignment already exists.
  
  Cause:
  
  Existing Assignment: The primary cause of this error is that there is already an existing assignment for the shadow item in question. This means that the system has detected that the field you are trying to change is already linked to another entry or transaction.
  Data Integrity: SAP enforces data integrity rules to ensure that changes do not violate existing relationships or dependencies within the system.
  
  Configuration Issues: Sometimes, configuration settings in the system may lead to this error if they are not set up correctly.
  
  
  Solution:
  
  Check Existing Assignments: Review the existing assignments for the shadow item. You can