Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 143
Message text: Inconsistency in master data of G/L account &1; see long text
Master data for G/L account &V1& exists at company code level in company
code &V2& (also referred to as B-level; table SKB1), but not at chart of
accounts level in chart of accounts &V3& (also referred to as A-level;
table SKA1)
Inconsistency
Correct the master data for this G/L account accordingly.
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_20100143 indicates an inconsistency in the master data of a General Ledger (G/L) account. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools or during system upgrades.
Cause: The inconsistency can be caused by several factors, including: Missing or Incomplete Data: The G/L account may be missing required master data fields or may have incomplete entries. Data Migration Issues: During data migration, if the mapping of fields is incorrect or if there are discrepancies in the source data, inconsistencies can occur.
Configuration Issues: Incorrect configuration settings in the G/L account or related financial settings can lead to inconsistencies. Duplicate Entries: There may be duplicate entries or conflicting data in the master data records.
Solution: To resolve the CNV_20100143 error, you can follow these steps: Check the Long Text: The error message usually provides a long text with more details about the inconsistency. Review this information carefully to
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_20100142 Initialization is completed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_20100141 Error during update to table &1, field &2, package &3.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_20100144 Settings have been confirmed; activity cannot be executed any more
What causes this issue?  You are trying to execute an activity for which the settings have already been confirmed.System Response  The system consider...
CNV_20100145 Multicopy indicator was set for table &1
What causes this issue?  If this indicator is set and the table key is changed, the changed table records are included in the database table in additi...
Click on this link to search all SAP messages.