How To Fix CNV_10020477 - &1: Length &3 of source det. object &2 is greater than maximum length &4

CNV_10020477 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 477

• Message text: &1: Length &3 of source det. object &2 is greater than maximum length &4

What causes this issue?

The length of source determination object &V2& was specified as &V3&.
However the allowed maximum length of a source determination object is
&V4&. Source determination object values of larger size cannot be stored
in an object table.

How to fix this error?

Define a smaller source determination object for &V1&.
&HINTS&
The maximum length can be defined differently for source and target
determination objects.

Error message extract from SAP system. Copyright SAP SE.

CNV_10020477 - Details

• The SAP error message CNV_10020477 typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program. This error indicates that the length of a source data object exceeds the maximum allowable length defined in the target structure.
  
  Cause:
  The error message can be broken down as follows:
  
  Source Data Object: This refers to the data being migrated or converted.
  Length: The actual length of the source data object.
  Maximum Length: The maximum length defined in the target structure for that particular field.
  
  The error occurs when the data being processed is too long for the target field, which can happen due to:
  
  Incorrect mapping of fields between source and target.
  Changes in data structure or field definitions between the source and target systems.
  Data quality issues in the source system, such as unexpected long strings.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Field Mapping: Review