Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 115
Message text: Merge at A level: No priority control for merge to account &1.
It was found that two or more old G/L accounts are mapped to target &V1&
, but the priority indicator is set for neither of these relations.
If the priority indicator is not set, it is not clear which settings
will take priority when the accounts are merged into &V1&.
Set the priority indicator for one of the mapping entries with target
account &V1&.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
&NOTE&Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_20100115 typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is an issue with merging accounts at the A level (which usually refers to account level in financial data) due to a lack of priority control for the merge operation.
Cause: The error arises when the system encounters multiple accounts that need to be merged, but it cannot determine which account should take priority in the merge process. This can happen due to: Duplicate Accounts: There are multiple accounts that are candidates for merging, but the system does not have a clear rule or priority to decide which account should be retained.
Configuration Issues: The configuration settings for account merging may not be properly defined, leading to ambiguity in the merge process. Data Quality Issues: Inconsistent or incomplete data in the accounts being merged can
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