How To Fix DMCLG394 - Error during construction of structure name (maximum length exceeded)

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 394

• Message text: Error during construction of structure name (maximum length exceeded)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG394 - Error during construction of structure name (maximum length exceeded) ?

  The SAP error message DMCLG394, which states "Error during construction of structure name (maximum length exceeded)," typically occurs when the system encounters a structure name that exceeds the maximum allowable length. This can happen in various contexts, such as when defining data structures, creating database tables, or working with ABAP programs.
  Cause:
  
  Exceeding Length Limits: In SAP, there are specific limits on the length of identifiers (like structure names, table names, etc.). For example, the maximum length for a structure name is usually 30 characters.
  Dynamic Naming: If your program or configuration dynamically generates structure names based on certain parameters, it may inadvertently create names that exceed the maximum length.
  Incorrect Configuration: Sometimes, incorrect settings or configurations in the system can lead to the generation of overly long names.
  
  Solution:
  
  Check Structure Names: Review the structure names being used in your program or configuration. Ensure that none of them exceed the maximum length allowed by SAP.
  Modify Naming Conventions: If you are dynamically generating names, consider revising your naming conventions to ensure that they remain within the character limit.
  Refactor Code: If the error arises from ABAP code, refactor the code to use shorter names or to avoid dynamic name generation that could lead to exceeding the limit.
  Review Data Dictionary Objects: If the error is related to database objects, check the Data Dictionary (SE11) for any objects that may have been incorrectly defined with long names.
  Consult Documentation: Refer to SAP documentation for specific limits and guidelines regarding naming conventions and structure definitions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Builder) to investigate and modify the relevant structures or programs.
  Debugging: If the error occurs during runtime, consider using the ABAP debugger to trace the execution and identify where the long structure name is being generated.
  
  By addressing the naming conventions and ensuring compliance with SAP's length restrictions, you should be able to resolve the DMCLG394 error.