How To Fix CNV810 - Incorrect sequence of fields for table &1 was defined

CNV810 - Overview

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 810

• Message text: 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 meet the
following condition:
SEQNUM(MCPOS = 'L') >= SEQNUM(MCPOS = 'F') >= SEQNUM(MCPOS = SPACE)
This condition means the following:
The SEQNUM of all entries in the table CNVFIELDS with MCPOS = 'L' must
be greater than or equal to the SEQNUM of all other entries
The SEQNUM of all corresponding entries in the table CNVFIELDS with
MCPOS = SPACE must be less than or equal to the SEQNUM of all other
entries
This is not the case for the table &V1&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Correct the corresponding entries in the table CNVFIELDS accordingly.

Error message extract from SAP system. Copyright SAP SE.

CNV810 - Details

• The SAP error message CNV810 indicates that there is an incorrect sequence of fields defined for a specific table in the context of data conversion or migration. This error typically arises during the execution of a data migration project, particularly when using SAP's Data Migration tools or the SAP S/4HANA Migration Cockpit.
  
  Cause:
  The error is caused by a mismatch in the expected order of fields in a table compared to what is defined in the data migration structure. This can happen due to:
  
  Incorrect Mapping: The fields in the source data do not match the expected sequence in the target table.
  Changes in Table Structure: If the table structure has been modified (e.g., fields added, removed, or reordered) after the migration structure was defined.
  
  Configuration Issues: Incorrect configuration in the migration settings or templates.
  
  
  Solution:
  To resolve the CNV810 error, you can follow these steps:
  
  
  Check Field Mapping: Review the mapping of fields between the source and