How To Fix CNV20305608 - Problem in routine CNV_20305_REFBN_CO_REFBTYP: Unknown type (REFBT)

CNV20305608 - Overview

• Message type: E = Error

• Message class: CNV20305 - Messages for conversion packages in CO

• Message number: 608

• Message text: Problem in routine CNV_20305_REFBN_CO_REFBTYP: Unknown type (REFBT)

What causes this issue?

Routine CNV_20305_REFBN_CO_REFBTYP converts a field based on the type
in field REFBT.
An unknown type occurred during the conversion: &V1&.
Additional information: The value of the field that is meant to be
converted is &V2&.

System Response

The routine cannot convert the current field.
However the conversion is continued for the other fields and records.

How to fix this error?

An analysis is required to find out how the routine should react to the
unknown type; if necessary, the routine must be changed accordingly.

Error message extract from SAP system. Copyright SAP SE.

CNV20305608 - Details

• The SAP error message CNV20305608, which indicates a problem in the routine CNV_20305_REFBN_CO_REFBTYP due to an "Unknown type (REFBT)," typically arises during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  
  Cause:
  
  
  Unknown Reference Type: The error suggests that the system encountered a reference type (REFBT) that it does not recognize. This could be due to:
  
  Missing or incorrect configuration in the migration settings.
  An unsupported or unrecognized data type in the source system.
  A mismatch between the source data and the expected data structure in the target system.
  
  
  
  Data Inconsistencies: The source data may contain entries that do not conform to the expected formats or types defined in the migration routines.
  
  
  Custom Developments: If there are custom developments or modifications in the source system that introduce new reference types, these may not be accounted for in the standard migration routines.
  
  
  
  Solution:
  
  
  Check Configuration: Review the migration settings and ensure that all