Message type: E = Error
Message class:  CNV_20211_CHECK - Messages for check functions (company conversion) 
Message number: 010
Message text: Participating companies have different local currencies
The participating companies have different local currencies..
Error
A merge of the companies is not possible and therefore a merge of
company codes is also not possible We recommend that you contact SAP for
support by creating a ticket using component CA-LT-CNV.
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_20211_CHECK010 indicates that there is a mismatch in the local currencies of participating companies during a data migration or conversion process. This error typically arises in scenarios where multiple company codes are involved, and each company code has a different local currency set in the system.
Cause: Different Local Currencies: The primary cause of this error is that the participating company codes have different local currencies defined in their respective configurations. For example, if one company code is set to USD and another to EUR, this discrepancy will trigger the error. Data Migration Issues: During data migration, if the system attempts to consolidate or process data from these company codes without addressing the currency differences, it will result in this error. Configuration Settings: Incorrect or inconsistent configuration settings in the SAP system regarding currency settings for different company codes can also lead to this issue.
Solution: Check Company Code Settings: Review the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_20211_CHECK004 No company mapping provided
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_20200_CHECK424 Target company code &1 affected by different migration plans and dates
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_20211_CHECK011 Company &1 with local currency &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_20211_CHECK012 All participating companies have same local currency &
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.