How To Fix CNV_20100139 - Priority control does not work for merge to sec. CostEl &2 in CoAr &3

CNV_20100139 - Overview

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 139

• Message text: Priority control does not work for merge to sec. CostEl &2 in CoAr &3

What causes this issue?

When checking the priority indicators, the system found that the
priority indicator was set exactly once for all merges to the target
cost element &V2& in the mapping table (which is correct).
The priority indicator is set for the following mapping:
&V1& -> &V2&
Cost element &V1& is a secondary cost element.
In controlling area &V3&, the source cost element &V1& does not exist,
while at least two other cost elements are going to be merged into
target cost element &V2&.

System Response

Because the source cost element &V1& with priority = X does not exist in
controlling area &V3&, it is not clear which settings will take priority
when the other cost elements in this controlling area are merged into
target cost element &V2&.

How to fix this error?

If required, execute the activity <ZK>Maintain B Segment Merges</> to
explicitly specify the source cost element for controlling area &V3&
whose <DS:TX.CNV_20100_TX_BSEGMENT>B segment</> settings you want to use
for target cost element &V2&.
&ADDITIONAL_HINTS&
Note that the priority indicator must not be set more than <ZH>once</>
for all merges to a given target account. This is also valid for
cross-chart of accounts merges.
The super priority is mainly useful for merging records in tables that
have only a chart of accounts field, but no account/cost element field,
as well as in tables for which the priority indicator has not been set
at G/L account/cost element level so that it is not clear which of the
records is meant to take priority.
Note also that even if a <DS:TX.CNV_20100_TX_SUPERPRIO>super priority</>
was defined at chart of accounts level it is still not clear which
settings (from which account/cost element) take priority during a merge
to a given target if <ZH> more than one</> account or cost element from
the <ZH>same</> chart of accounts is merged into this target.

Error message extract from SAP system. Copyright SAP SE.

CNV_20100139 - Details

• The SAP error message CNV_20100139 typically relates to issues encountered during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This specific error indicates that there is a problem with the priority control for merging secondary cost elements in a particular controlling area.
  
  Cause:
  The error message suggests that the system is unable to apply the priority control for merging secondary cost elements due to one or more of the following reasons:
  
  
  Configuration Issues: The controlling area or cost element settings may not be properly configured to allow for the merging of secondary cost elements.
  Data Inconsistencies: There may be inconsistencies or conflicts in the data being migrated, such as duplicate entries or incorrect mappings.
  Missing Authorizations: The user executing the migration may not have the necessary authorizations to perform the operation.
  Technical Limitations: There may be technical limitations or bugs in the version of SAP being used that affect