How To Fix GT251 - No conversion exits found for table &

SAP Error Message - Details

• Message type: E = Error

• Message class: GT - Database utilities

• Message number: 251

• Message text: No conversion exits found for table &

What causes this issue?

The specified table should be converted, where special external
routines and not the standard methods (move-corresponding etc.) are to
be used.
The name and location of these methods are stored in table DDCNVEXIT.
No entry was found for the table there.

System Response

The conversion is not started.

How to fix this error?

Maintain table DDCNVEXIT correctly or use the standard methods for
converting.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GT251 - No conversion exits found for table & ?

  The SAP error message GT251 "No conversion exits found for table &" typically occurs when there is an issue with the data type conversion in the context of a table or field. This error is often related to the use of data types that do not have a defined conversion exit, which is necessary for certain operations, especially when dealing with fields that require specific formatting or conversion logic.
  Cause:
  
  Missing Conversion Exit: The field in question may not have a defined conversion exit. Conversion exits are used in SAP to format data for display or input, and if one is not defined for a particular field, this error can occur.
  Incorrect Data Type: The data type of the field may not match the expected type for the operation being performed.
  Table Definition Issues: There may be issues with the table definition in the Data Dictionary (SE11), such as missing or incorrect field attributes.
  Custom Development: If there are custom programs or enhancements that manipulate data, they may not be handling the conversion correctly.
  
  Solution:
  
  
  Check Conversion Exits: Verify if the field in question has a conversion exit defined. You can do this by checking the Data Dictionary (SE11) for the field's attributes.
  
  If a conversion exit is missing, you may need to create one or use a different field that has the appropriate conversion exit.
  
  
  
  Review Data Types: Ensure that the data types of the fields being used in the operation are compatible. If necessary, adjust the data types in the table definition or the program logic.
  
  
  Table Definition: Check the table definition in SE11 to ensure that all fields are correctly defined and that any necessary conversion exits are assigned.
  
  
  Debugging: If the error occurs in a custom program, use the debugger to trace the execution and identify where the conversion is failing. Look for any custom logic that may be causing the issue.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  
  
  Consult Documentation: Review SAP documentation or community forums for additional insights or similar cases that may provide a solution.
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SE37 (Function Modules) can be useful for checking the definitions and attributes of tables and fields.
  Conversion Exits: Common conversion exits include ALPHA, DATE, TIME, etc. Each of these has specific formatting rules that must be adhered to.
  SAP Community: Engaging with the SAP Community can provide additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the GT251 error and implement a suitable solution.