How To Fix CNV20400031 - Table &1 has a relevant domain for conversion in its key, but no SUMUP

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20400 - Message class CNV20400

• Message number: 031

• Message text: Table &1 has a relevant domain for conversion in its key, but no SUMUP

What causes this issue?

If two or more records of a table are to be merged, it must be clear
how the fields in the data part of these records should be handled.
Otherwise, the conversion program for this table would terminate,
because a table must not contain two records that have the same key,
but different data parts.
To avoid this, you use the SUMUP indicator to specify the handling of
the data fields:
If you want the relevant field contents to be totaled, enter the value
'S' for the SUMUP indicator.
If you want the data field content of one of the table records that
will be merged to apply for the target record, enter the value 'A' for
the SUMUP indicator.
Records are meant to be merged in table &V1&. However no value has been
specified for the SUMUP indicator.

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?

In transaction CNV_TABLES, set the SUMUP indicator for the relevant
table to the required value (A or S).
Note: If the view is not changeable, call program
CNV_00001_ENABLE_MAINTENANCE to make the view changeable and then try
again.
If a priority routine is needed as well, specify the routine (in
transaction CNV_STEPS) and set the priority indicator (in transaction
CNV_FIELDS).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20400031 - Table &1 has a relevant domain for conversion in its key, but no SUMUP ?

  The SAP error message CNV20400031 indicates that there is a problem with a specific table during a data conversion process, typically related to the SAP S/4HANA migration or data transfer activities. The message states that the table in question has a relevant domain for conversion in its key, but there is no SUMUP defined for that domain.
  Cause:
  
  Domain Definition: The domain associated with the key field of the table does not have a SUMUP defined. SUMUP is a mechanism in SAP that allows for the aggregation of values based on certain criteria, and it is necessary for the conversion process to handle the data correctly.
  Data Model Changes: If the table structure or the associated domains have been modified or are not aligned with the expected data model for the conversion, this error can occur.
  Configuration Issues: There may be configuration issues in the data conversion settings that prevent the system from recognizing how to handle the domain.
  
  Solution:
  
  
  Check Domain Settings: 
  
  Go to transaction SE11 (Data Dictionary) and check the domain associated with the key field of the table mentioned in the error message.
  Ensure that the domain has a SUMUP defined. If it does not, you may need to create or modify the domain to include a SUMUP.
  
  
  
  Review Table Structure:
  
  Check the structure of the table in question to ensure that it is correctly defined and that all key fields are properly set up.
  If necessary, adjust the table structure to align with the expected configuration for the conversion.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the specific conversion process you are performing. There may be specific guidelines or prerequisites that need to be followed.
  
  
  
  Use SAP Notes:
  
  Search for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  
  Engage SAP Support:
  
  If the issue persists after checking the domain and table structure, consider reaching out to SAP Support for assistance. Provide them with the error message and any relevant details about your system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE37 (Function Builder), SE80 (Object Navigator).
  SAP Notes: Regularly check the SAP Support Portal for notes related to data conversion and migration issues.
  Documentation: Review the SAP S/4HANA Migration Guide or the specific documentation for the conversion tool you are using (e.g., Software Update Manager, Migration Cockpit).
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.