How To Fix MC779 - Field &-&: Type conflict, comparison value & is too long

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 779

• Message text: Field &-&: Type conflict, comparison value & is too long

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MC779 - Field &-&: Type conflict, comparison value & is too long ?

  The SAP error message MC779 indicates a type conflict in a field, specifically that the comparison value provided is too long for the expected data type. This error typically occurs in the context of data processing or reporting, particularly when dealing with fields that have specific length constraints.
  Cause:
  
  Field Length Exceeded: The value being compared or assigned to a field exceeds the maximum length defined for that field in the database or data structure.
  Data Type Mismatch: The data type of the value being processed does not match the expected data type of the field. For example, trying to assign a string to a numeric field or vice versa.
  Incorrect Configuration: The configuration settings in the relevant module or transaction may not align with the expected data formats.
  
  Solution:
  
  Check Field Length: Review the field definition in the relevant data structure or database table to determine the maximum length allowed. Ensure that the value being assigned or compared does not exceed this length.
  Data Type Validation: Ensure that the data type of the value being processed matches the expected data type of the field. If necessary, convert the data to the appropriate type before processing.
  Adjust Input Values: If the input value is user-generated or comes from an external source, implement validation checks to ensure that it adheres to the required length and type before it is processed.
  Review Configuration: Check the configuration settings in the relevant SAP module to ensure that they are set up correctly and that there are no discrepancies in data types or lengths.
  Debugging: If the error persists, consider using debugging tools in SAP to trace the execution and identify where the type conflict is occurring.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to look into specific transaction codes related to the module you are working with (e.g., MC.9 for inventory management).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to SAP documentation for the specific module you are working with to understand the data structures and constraints better.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the MC779 error and implement an appropriate solution.