How To Fix NSDM_MM_MIG065 - ERROR: field &1 has unknown type, detail field comparison not possible

NSDM_MM_MIG065 - Overview

• Message type: E = Error

• Message class: NSDM_MM_MIG - MM-IM: Messages for Migration

• Message number: 065

• Message text: ERROR: field &1 has unknown type, detail field comparison not possible

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 NSDM_MM_MIG065 - ERROR: field &1 has unknown type, detail field comparison not possible ?

  The SAP error message NSDM_MM_MIG065 indicates that there is an issue with a field in the context of data migration, specifically that the field has an "unknown type," which prevents a detailed field comparison from being performed. This error typically arises during data migration processes, such as when using the SAP Data Migration Cockpit or similar tools.
  
  Cause:
  
  Field Type Mismatch: The field in question may not be correctly defined in the source or target system. This could be due to a missing or incorrect data type definition.
  Inconsistent Data Model: The data model in the source system may not match the expected data model in the target system, leading to fields being unrecognized.
  
  Configuration Issues: There may be configuration issues in the migration settings that do not align with the data structure of the source or target systems.
  Custom Fields: If the field is a custom field, it may not be properly mapped or