How To Fix CNV_00001605 - No technically suitable conversion routine found; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 605

• Message text: No technically suitable conversion routine found; see long text

What causes this issue?

Field &V2& of table &V1& is an SAP standard table field, and therefore
the conversion routine must be provided by SAP.

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?

Contact SAP for support.

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 CNV_00001605 - No technically suitable conversion routine found; see long text ?

  The SAP error message CNV_00001605 indicates that there is no technically suitable conversion routine available for the data conversion process you are attempting to execute. This error typically arises during data migration or conversion activities, particularly when using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion programs.
  Cause:
  
  Missing Conversion Routine: The specific data type or field you are trying to convert does not have an associated conversion routine defined in the system.
  Incorrect Configuration: The configuration settings for the data migration might be incorrect or incomplete, leading to the system not being able to find the appropriate conversion routine.
  Data Type Mismatch: The source data type may not match the expected target data type, causing the conversion routine to be unavailable.
  Custom Fields: If you are working with custom fields or tables, there may not be a predefined conversion routine for those fields.
  
  Solution:
  
  Check Conversion Routines: Verify if the required conversion routines are defined in the system. You can do this by checking the relevant transaction codes (like SE37 for function modules) or using the SAP Data Migration Workbench.
  Define Missing Routines: If a conversion routine is missing, you may need to create a custom conversion routine. This can be done by implementing a function module that handles the specific conversion logic.
  Review Configuration: Ensure that the configuration for the data migration is complete and correct. Check the mapping of source and target fields to ensure they align properly.
  Data Type Validation: Validate the data types of the source and target fields to ensure they are compatible. If there is a mismatch, you may need to adjust the data types or the conversion logic.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific migration or conversion process you are using. There may be specific guidelines or updates that address this issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or fixes related to this error.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide solutions or workarounds.
  Testing: After implementing any changes, conduct thorough testing to ensure that the conversion process works as expected without further errors.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution to resolve it.