How To Fix FRMLAPI121 - Conversion error in subobject &1 with key &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FRMLAPI - RMS-FRM: API Messages for Formula

• Message number: 121

• Message text: Conversion error in subobject &1 with key &2

What causes this issue?

You have called a method of the formula business object. An error
occurred during processing when converting the units in subobject &V1&.
The object key is &V2&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the units of the subobject.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FRMLAPI121 - Conversion error in subobject &1 with key &2 ?

  The SAP error message FRMLAPI121, which indicates a "Conversion error in subobject &1 with key &2," typically arises in the context of data conversion or processing within the SAP system, particularly when dealing with complex data structures or when integrating with external systems.
  Cause:
  
  
  Data Type Mismatch: The error often occurs when there is a mismatch between the expected data type and the actual data being processed. For example, if a numeric field is expected but a string is provided, this can lead to conversion errors.
  
  
  Invalid Data: The data being processed may contain invalid or unexpected values that cannot be converted to the required format.
  
  
  Configuration Issues: There may be issues with the configuration of the subobject or the data model that is being used, leading to improper handling of data.
  
  
  Missing Data: Required fields or keys may be missing, which can cause the conversion process to fail.
  
  
  Custom Code: If there is custom code involved in the data processing, bugs or logical errors in that code can also lead to conversion errors.
  
  
  Solution:
  
  
  Check Data Types: Review the data being processed to ensure that it matches the expected data types for the subobject. Make sure that numeric fields contain only numbers, date fields contain valid dates, etc.
  
  
  Validate Input Data: Implement validation checks to ensure that the data being passed to the conversion process is valid and complete.
  
  
  Review Configuration: Check the configuration of the subobject and ensure that it is set up correctly. This includes reviewing any mappings or transformations that may be in place.
  
  
  Debugging: If the error is occurring in custom code, use debugging tools to step through the code and identify where the conversion is failing. Look for any logical errors or incorrect assumptions about the data.
  
  
  Error Logs: Check the SAP application logs (transaction SLG1) for more detailed error messages that may provide additional context about the failure.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific subobject and conversion processes to identify any known issues or additional troubleshooting steps.
  
  
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for assistance, providing them with the error message details and any relevant context.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLG1 (Application Log) for checking logs, SE80 (Object Navigator) for reviewing objects, and SE37 (Function Module) for examining function modules involved in the conversion process.
  SAP Notes: Search for SAP Notes related to FRMLAPI121 or the specific subobject in the SAP Support Portal for any patches or updates that may address the issue.
  Community Forums: Engage with SAP community forums or user groups 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 FRMLAPI121 error and implement an appropriate solution.