Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 298
Message text: KEYCHVIEWS indicator is initialized for package &1
<DS:TX.CNV_MBT_TEMP_DUPLICATES>Temporary duplicates</> or cyclic changes
may occur. For this reason the KEYCHVIEWS indicator must be initialized.
The KEYCHVIEWS indicator was initialized at package level for package
&V1&.
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_20100298 with the description "KEYCHVIEWS indicator is initialized for package &1" typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system has encountered an issue with the key views that are required for the migration package specified.
Cause: The error is generally caused by one of the following reasons: Missing Key Views: The key views that are necessary for the migration package are not properly defined or initialized. Incorrect Configuration: The migration package may not be configured correctly, leading to the initialization of the KEYCHVIEWS indicator. Data Model Issues: There may be inconsistencies or issues in the data model that prevent the key views from being recognized or utilized.
Solution: To resolve this error, you can take the following steps: Check Migration Package Configuration: Ensure that the migration package specified in the error message is correctly configured. Review the settings
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_20100297 Financial statement version &1: G/L acct &2 exists in positions &3 and &4
What causes this issue?  According to the setting in the mapping table, financial statement version &V1& will contain account &V2& at ...
CNV_20100296 Posting period variant &1 is used by relevant company codes
 Posting period variant &V1& is used by company codes that participate in the conversion.System Response  WarningHow to fix this error?  Find ...
CNV_20100299 Group &1 is not unique after the conversion
What causes this issue?  A group is unique if it only contains each subgroup and each value once. Value intervals may not overlap each other. The prog...
CNV_20100300 Format check completed; no inconsistencies found
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.