How To Fix CNV_00001604 - No technically suitable conversion routine found; see long text

CNV_00001604 - Overview

• Message type: E = Error

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

• Message number: 604

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

What causes this issue?

Field &V2& or table &V1& is not delivered by SAP. The system assigns the
conversion routines automatically, based on the data type of the field.
However, no suitable conversion routine was found for this field.
Note:
The assignment of the conversion routine takes into account only
technical attributes of the conversion-relevant field (data element and
/ or domain). If the data contained in this field does not correspond to
the data indicated by its data element or domain, the conversion can
fail (although technically all settings are correct).

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?

Create an appropriate conversion routine, and assign it to the field.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_00001604 - Details

• The SAP error message CNV_00001604 indicates that there is no technically suitable conversion routine available for the data being processed. This error typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program.
  
  Cause:
  
  
  Missing Conversion Routine: The primary cause of this error is that the system cannot find a suitable conversion routine for the data type or field being processed. This can happen if:
  
  The required conversion routine has not been implemented or is not active.
  The data type of the source field does not match any of the available conversion routines.
  The conversion routine is not defined in the relevant namespace or is not accessible.
  
  
  
  Incorrect Data Mapping: If the data mapping between the source and target systems is incorrect or incomplete, it may lead to this error.
  
  
  
  Configuration Issues: There may be configuration issues in the data migration settings or in the