How To Fix /SCMTMS/DG026 - Unique field mapping for field &1 is not possible; see long text

/SCMTMS/DG026 - Overview

• Message type: E = Error

• Message class: /SCMTMS/DG -

• Message number: 026

• Message text: Unique field mapping for field &1 is not possible; see long text

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 /SCMTMS/DG026 - Unique field mapping for field &1 is not possible; see long text ?

  The SAP error message /SCMTMS/DG026 Unique field mapping for field &1 is not possible; see long text typically occurs in the context of SAP Transportation Management (TM) when there is an issue with the mapping of fields in the data transfer process, particularly when trying to establish a unique mapping for a specific field.
  
  Cause:
  
  Field Mapping Issues: The error indicates that the system is unable to create a unique mapping for the specified field (denoted by &1). This can happen if the field in question is not unique in the source data or if there are multiple entries that could correspond to the same target field.
  Data Inconsistencies: There may be inconsistencies or duplicates in the data being processed, which prevents the system from establishing a clear one-to-one relationship.
  Configuration Errors: Incorrect configuration in the mapping settings or in the data transfer process can lead to this error.
  
  
  Solution:
  
  Check Data for Duplicates: Review the