Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 600
Message text: Validity period was adapted for cost element &1 in controlling area &2
The validity periods for cost element &V1& in controlling area &V2&
overlapped.
The start dates and the end date were adapted so that the validity
intervals do not overlap any more.
In addition, the program made sure that the lowest as well as the
highest validity dates for this cost element are identical before and
after the conversion.
Check if the individual validity intervals for cost element &V1& in
controlling area &V2& make sense.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_20100600 indicates that there is an issue with the validity period of a cost element in a specific controlling area. This error typically arises during data migration or when changes are made to cost elements in the system.
Cause: The error message CNV_20100600 is triggered when the validity period of a cost element does not align with the expected configuration or data in the system. This can happen due to several reasons, including: Incorrect Configuration: The cost element may have been configured with a validity period that does not match the controlling area settings. Data Migration Issues: During data migration, if the validity periods of cost elements are not correctly mapped or adjusted, this error can occur. Changes in Cost Element Master Data: If there have been recent changes to the cost element master data that affect its validity period, it may lead to this error.
Solution: To resolve the error CNV_20100600, you
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