How To Fix CNV_DMC_UI_FW_EXCEPT031 - Data object &1 already exists

CNV_DMC_UI_FW_EXCEPT031 - Overview

• Message type: E = Error

• Message class: CNV_DMC_UI_FW_EXCEPT - Messages for exception classes

• Message number: 031

• Message text: Data object &1 already exists

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_UI_FW_EXCEPT031 - Details

• The SAP error message CNV_DMC_UI_FW_EXCEPT031 with the description "Data object &1 already exists" typically occurs in the context of data migration or data conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is an attempt to create or insert a data object (like a record or entry) that already exists in the target system or database.
  
  Cause:
  
  Duplicate Data: The most common cause is that the data object you are trying to create already exists in the target system. This could be due to previous migration attempts or existing data in the system.
  Incorrect Mapping: There may be an issue with the mapping of source data to target data, leading to attempts to create duplicates.
  
  Configuration Issues: Misconfiguration in the migration settings or parameters can lead to this error.
  Data Integrity Constraints: The target system may have constraints (like primary keys or unique indexes) that