How To Fix /SAPDMC/LSMW_OBJ_020012 - Specify a field length > 0.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPDMC/LSMW_OBJ_020 -

• Message number: 012

• Message text: Specify a field length > 0.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPDMC/LSMW_OBJ_020012 - Specify a field length > 0. ?

  The SAP error message /SAPDMC/LSMW_OBJ_020012 Specify a field length > 0 typically occurs in the context of using the Legacy System Migration Workbench (LSMW) in SAP. This error indicates that a field length has not been specified or is set to zero for a particular field in the LSMW project.
  Cause:
  
  Field Length Not Specified: The most common cause of this error is that during the configuration of the LSMW project, a field was defined without specifying a length, or the length was inadvertently set to zero.
  Incorrect Mapping: If you are mapping fields from the source structure to the target structure, and one of the fields does not have a valid length, this error can occur.
  Data Structure Issues: If the data structure being used does not conform to the expected format or if there are discrepancies in the field definitions.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Field Definitions:
  
  Go to the LSMW project and check the field definitions in the relevant object.
  Ensure that all fields have a specified length greater than zero.
  
  
  
  Modify Field Length:
  
  If you find any field with a length of zero, modify it to a valid length that meets the requirements of the target structure.
  
  
  
  Review Mapping:
  
  Review the mapping of fields from the source to the target. Ensure that all fields are correctly mapped and that their lengths are appropriate.
  
  
  
  Test the Configuration:
  
  After making the necessary changes, test the configuration again to ensure that the error does not reoccur.
  
  
  
  Documentation:
  
  If you are unsure about the required field lengths, refer to the SAP documentation or the data dictionary (SE11) for the specific data structure you are working with.
  
  
  
  Related Information:
  
  LSMW: The Legacy System Migration Workbench is a tool in SAP that helps in migrating data from legacy systems into SAP systems.
  Field Lengths: Field lengths are critical in data migration as they define how much data can be stored in a particular field. Incorrect lengths can lead to data truncation or errors during the import process.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on LSMW configurations.
  
  By following these steps, you should be able to resolve the error and successfully complete your data migration task using LSMW.