Message type: E = Error
Message class:  CNV_20200_CHECK - Messages for check functions (company code merge) 
Message number: 122
Message text: Merge of securities account groups
Merge of securities account groups.
Warning with action required
The business processes in Treasury must be analyzed for these conflicts.
Securities account groups can be renamed in order to keep them unique.
Provide a suitable mapping for securities account groups.
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.
The SAP error message CNV_20200_CHECK122 typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error is related to the merging of securities account groups, which can happen when there are inconsistencies or conflicts in the data being migrated.
Cause: Inconsistent Data: The error may arise if there are inconsistencies in the securities account groups being merged. This could be due to duplicate entries, missing data, or incorrect configurations.
Configuration Issues: If the account groups are not properly configured in the target system, it can lead to conflicts during the merge process. Data Mapping Errors: Incorrect mapping of data from the source system to the target system can also trigger this error.
Solution: Check Data Consistency: Review the securities account groups in both the source and target systems to ensure there are no duplicates or inconsistencies. Make sure that all necessary data is present and correctly formatted. Review
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_20200_CHECK121 The fiscal year variant is different on non-leading ledger level
What causes this issue?  The fiscal year variant is different on non-leading ledger level.System Response  ErrorHow to fix this error?  You cannot run...
CNV_20200_CHECK120 The currency settings are different on non-leading ledger level
What causes this issue?  The currency settings are different on non-leading ledger level.System Response  ErrorHow to fix this error?  You cannot run ...
CNV_20200_CHECK123 Merge into (Company code &1, Securities account group &2)
What causes this issue?  Merge of securities account groups.System Response  Warning with action requiredHow to fix this error?  The business processe...
CNV_20200_CHECK124 (CoCd &1, AccGrp &2) is mapped to (CoCd &3, AccGrp &4)
What causes this issue?  (Company Code &V1&, Securities Account Group &V2&)  is mapped to (Company Code &V3&, Securities Accou...
Click on this link to search all SAP messages.