How To Fix NGC_CORE_DB005 - Number of reference value type conversion errors: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: NGC_CORE_DB - Message class for Conversion reports

• Message number: 005

• Message text: Number of reference value type conversion errors: &1

What causes this issue?

There is at least one business object which has reference
characteristics with values that cannot be converted. The details can be
found in the full log of the conversion report (RNGC_CONV_REF_CHAR),
where the IDs of the business objects are indicated with warning
messages.

System Response

The reference characteristic value(s) of these business object(s) cannot
be copied to table AUSP, therefore they are skipped.

How to fix this error?

If the reference characteristic values of these business objects are not
necessary to be copied to AUSP, then there is no action required.
Otherwise, the type conversion error(s) should be examined (hint: check
the actual type of the reference characteristic and the actual type of
the referred field in the referred table: they should match). Fix not
matching characteristic types and then run the conversion again.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NGC_CORE_DB005 - Number of reference value type conversion errors: &1 ?

  The SAP error message NGC_CORE_DB005, which indicates "Number of reference value type conversion errors: &1", typically arises in the context of data processing or data migration within SAP systems. This error suggests that there are issues with converting data types, particularly when the system is trying to process reference values that do not match the expected data types.
  Cause:
  
  
  Data Type Mismatch: The most common cause of this error is a mismatch between the expected data type and the actual data type of the reference values being processed. For example, if a numeric value 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 type.
  
  
  Configuration Issues: There may be configuration settings in the SAP system that are not aligned with the data being processed, leading to conversion errors.
  
  
  Data Migration Issues: If this error occurs during a data migration process, it may be due to incorrect mapping of fields or data types between the source and target systems.
  
  
  Solution:
  
  
  Check Data Types: Review the data types of the fields involved in the conversion. Ensure that the data being processed matches the expected types. This may involve checking the database schema or the data model.
  
  
  Data Validation: Validate the data being processed to ensure that it does not contain any invalid or unexpected values. This may involve running data quality checks or cleansing the data before processing.
  
  
  Configuration Review: Review the configuration settings in the SAP system to ensure they are correctly set up for the data being processed. This may involve checking settings in the relevant modules or transaction codes.
  
  
  Error Logs: Check the error logs for more detailed information about the specific reference values that are causing the conversion errors. This can help identify the root cause of the issue.
  
  
  Data Migration Mapping: If the error occurs during data migration, review the mapping of fields between the source and target systems to ensure that data types are correctly aligned.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to the specific module or process you are working with for additional guidance.
  
  
  Related Information:
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common errors.
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in diagnosing or resolving the issue, such as SE11 (Data Dictionary), SE37 (Function Modules), or ST22 (Dump Analysis).
  
  
  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 cause of the NGC_CORE_DB005 error and implement a suitable solution.