How To Fix CNV_DMC_SIN398 - Catalog item &1 in inst. &2, catalog &3 has duplicated external ID &4

CNV_DMC_SIN398 - Overview

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 398

• Message text: Catalog item &1 in inst. &2, catalog &3 has duplicated external ID &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_DMC_SIN398 - Details

• The SAP error message CNV_DMC_SIN398 indicates that there is a duplication of external IDs in the data migration process, specifically related to catalog items. This error typically arises during the data migration phase when using the SAP Data Migration Cockpit (DMC) or similar tools.
  
  Cause:
  The error occurs when:
  
  There are multiple entries in the source data that have the same external ID for a catalog item.
  The external ID is expected to be unique for each catalog item within the specified instance and catalog.
  The data being migrated may have been incorrectly prepared, leading to duplicate entries.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Review the source data for the catalog item in question. Look for entries with the same external ID.
  You can use tools like Excel or SQL queries to identify duplicates in your dataset.
  
  
  
  Correct the Data:
  
  Once duplicates are identified, you need to decide how to handle them. Options include:
  Merging duplicate entries