How To Fix AD937 - Tables with long fields (> 255) cannot be converted.

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 937

• Message text: Tables with long fields (> 255) cannot be converted.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AD937 - Tables with long fields (> 255) cannot be converted. ?

  The SAP error message AD937 indicates that there is an issue with converting tables that contain long fields (fields with a length greater than 255 characters). This error typically arises during data transfer or conversion processes, such as when using the Data Transfer Workbench (DTW) or during data migration activities.
  Cause:
  
  Field Length Limitation: In SAP, certain operations or tools may have limitations on the length of fields they can handle. Fields longer than 255 characters may not be supported in specific contexts, leading to this error.
  Data Structure: The data structure being used may not be compatible with the target structure, especially if the target structure has a limitation on field lengths.
  Conversion Logic: The logic used for converting or transferring data may not account for long fields, resulting in a failure during the conversion process.
  
  Solution:
  
  Review Field Lengths: Check the field definitions in both the source and target tables. If possible, modify the source data to ensure that no fields exceed the 255-character limit.
  Use Appropriate Data Types: If you are working with custom tables or fields, consider using data types that can accommodate longer text, such as TEXT or STRING, if supported by the target system.
  Data Mapping: Ensure that the data mapping between source and target tables is correctly defined, and that any long fields are appropriately handled.
  Split Long Fields: If you cannot change the field definitions, consider splitting long fields into multiple shorter fields in the source data before the conversion.
  Check SAP Notes: Look for any relevant SAP Notes or documentation that may provide additional guidance or updates regarding this error. SAP frequently releases notes that address known issues and provide solutions.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module or tool you are using to understand the limitations and best practices for data conversion.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Testing: Before performing large-scale data migrations, conduct tests with smaller datasets to identify potential issues early in the process.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the AD937 error and successfully convert your data.