How To Fix CNV_10020189 - &1 &2: Length of TDetObject &3 is greater than maximum length &4

CNV_10020189 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 189

• Message text: &1 &2: Length of TDetObject &3 is greater than maximum length &4

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

CNV_10020189 - Details

• The SAP error message CNV_10020189 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 specific field (TDetObject) exceeds the maximum allowed length defined in the target structure.
  
  Cause:
  The error is caused by one of the following reasons:
  
  Data Length Exceeded: The data being migrated or converted has a length that exceeds the maximum length defined for the target field in the database or data structure.
  Incorrect Mapping: There may be an issue with the mapping of source fields to target fields, where the source field's length is not properly aligned with the target field's definition.
  Data Quality Issues: The source data may contain unexpected or malformed entries that exceed the expected length.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Field Lengths: Review the definitions of the source and target fields.