How To Fix CNV_10020144 - &1 &2: Lengths of SDetObject &3 and source field &4 differ

CNV_10020144 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 144

• Message text: &1 &2: Lengths of SDetObject &3 and source field &4 differ

What causes this issue?

For this DTFLD record, source field &V4& has been assigned to
<DS:DE.CNV_10020_DTOBJ_S>source determination object</> &V3&. (The
value given in brackets is the corresponding allowed number of
characters.)
The system found that the length of the source determination object
does not correspond to the length of the source field. However this
must be the case.

How to fix this error?

The most likely reason for this is that a wrong source field has been
assigned. Correct the definition accordingly.

Error message extract from SAP system. Copyright SAP SE.

CNV_10020144 - Details

• The SAP error message CNV_10020144 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a mismatch in the lengths of the source field and the target field in the data structure being processed.
  
  Cause:
  The error message can arise due to several reasons:
  
  Field Length Mismatch: The length of the source field (from the legacy system or source data) does not match the expected length of the target field in the SAP system.
  Data Type Differences: The data types of the source and target fields may not be compatible, leading to issues during the data transfer.
  Incorrect Mapping: The mapping configuration between the source and target fields may be incorrect, causing the system to expect a different length than what is provided.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Field Lengths: Verify the lengths of