Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 248
Message text: In FAGL_011ZC for VERSN=&1,ERGSL=&2,ChartAcc_new=&3: Overlap of intervals
In table FAGL_011ZC (assignment FS items - G/L account) for target chart
of accounts <(>&<)>V3& for financial statement version &1
and for financial statement item &2, overlaps of account intervals
will occur.
Warning
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_20100248 in the context of the FAGL_011ZC transaction typically indicates that there is an overlap of intervals in the financial data being processed. This error is often encountered during data migration or conversion processes, particularly when dealing with financial accounting data.
Cause: The error occurs when there are overlapping intervals for the same account or financial object in the data being processed. This can happen due to: Duplicate Entries: There may be multiple entries for the same account and period that overlap in terms of date ranges or values. Incorrect Data Mapping: During data migration, if the mapping of old data to new structures is not done correctly, it can lead to overlaps.
Configuration Issues: The configuration settings for the financial data may not be set up to handle the intervals correctly, leading to conflicts.
Solution: To resolve this error, you can take the following steps: Identify Overlapping Intervals: Review the data that is being
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