How To Fix DMC_RT_MSG591 - The field &1 of structure &2 is not ALPHANUMERIC.

DMC_RT_MSG591 - Overview

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 591

• Message text: The field &1 of structure &2 is not ALPHANUMERIC.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_MSG591 - The field &1 of structure &2 is not ALPHANUMERIC. ?

  The SAP error message DMC_RT_MSG591 indicates that a specific field in a structure is expected to contain alphanumeric data, but the data provided does not meet this requirement. This error typically arises in the context of data migration or data transfer processes, particularly when using tools like SAP Data Migration Cockpit (DMC) or SAP S/4HANA Migration.
  
  Cause:
  
  Data Format Issue: The field in question is defined to accept only alphanumeric characters (letters and numbers), but the data being processed contains special characters, spaces, or is entirely numeric.
  Incorrect Mapping: The mapping of fields from the source to the target structure may be incorrect, leading to incompatible data types.
  Data Entry Error: There may be a mistake in the data entry process, where invalid characters were inadvertently included.
  
  
  Solution:
  
  Data Validation: Check the data being uploaded or migrated to ensure that it conforms to the alphanumeric requirement. Remove any special characters or spaces from the data.
  Correct Mapping: