Message type: E = Error
Message class:  CNV - Conversion: Messages for Conversion Services (CNCC) 
Message number: 811
Message text: Not allowed value of Multicopy Position for the field &1 of the table &2
The field &V1& of the table &V2& was flagged Multicopy Position '&V3&'.
However the only allowed values for the field Multicopy Position are:
'F' (first in loop)
'L' (not first in loop)
SPACE (before loop).
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Select the correct value for the Multicopy Position.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV811 indicates that there is an issue with the "Multicopy Position" for a specific field in a table during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer processes.
Cause: The error message "Not allowed value of Multicopy Position for the field &1 of the table &2" suggests that the value being used for the "Multicopy Position" is not valid for the specified field in the specified table. This can occur due to several reasons: Incorrect Configuration: The configuration for the data migration might have incorrect settings for the multicopy position. Data Format Issues: The data being imported may not conform to the expected format or constraints defined for that field. Field Restrictions: The field may have specific restrictions or rules that are not being adhered to, such as data type,
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV810 Incorrect sequence of fields for table &1 was defined
What causes this issue?  If the MULTICOPY indicator is set for a table, the sequence of the fields in this table (as defined by the field SEQNUM) must...
CNV809 Table & is a cluster (pool) table; &2 is saved
What causes this issue?  Table &V1& is a cluster (pool) table. During the backup, the complete cluster (pool) &V2& is saved.System Res...
CNV812 No free differentiator (letter) available
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV813 Duplicate processing type initialized (table &1)
What causes this issue?  The duplicate handling type for the table &V1& was set to &V2&. However the table does not contain a key fiel...
Click on this link to search all SAP messages.