How To Fix /SAPDMC/LSMW_OBJ_020023 - You can only reassign a field within a structure.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPDMC/LSMW_OBJ_020 -

• Message number: 023

• Message text: You can only reassign a field within a structure.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPDMC/LSMW_OBJ_020023 - You can only reassign a field within a structure. ?

  The SAP error message /SAPDMC/LSMW_OBJ_020023 indicates that there is an issue with the reassignment of a field within a structure in the context of the Legacy System Migration Workbench (LSMW). This error typically arises when you are trying to map or reassign a field in a way that is not allowed by the structure definition.
  Cause:
  
  Field Reassignment: The error occurs when you attempt to reassign a field that is not allowed to be reassigned within the structure. This can happen if you are trying to map a field to a different field that is not compatible or if the field is not part of the structure you are working with.
  Incorrect Mapping: The mapping configuration may be incorrect, leading to an attempt to reassign fields that should not be reassigned.
  Structure Definition: The structure definition in the target system may not allow for the reassignment of certain fields, which can lead to this error.
  
  Solution:
  
  Check Field Mapping: Review the field mapping in your LSMW project. Ensure that you are only trying to reassign fields that are allowed within the structure. Make sure that the source and target fields are compatible.
  Review Structure Definition: Look at the structure definition in the target system to understand which fields can be reassigned. You may need to adjust your mapping based on this definition.
  Correct Configuration: If you find that the mapping is incorrect, correct it by ensuring that you are mapping fields appropriately according to the structure's rules.
  Consult Documentation: Refer to SAP documentation or help resources for LSMW to understand the limitations and rules regarding field reassignment within structures.
  
  Related Information:
  
  LSMW Documentation: SAP provides extensive documentation on using LSMW, including guidelines on field mapping and structure definitions.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context or solutions.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups where other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.