How To Fix /RPM/MIGRATION151 - Area &1 already exists in target table

/RPM/MIGRATION151 - Overview

• Message type: E = Error

• Message class: /RPM/MIGRATION -

• Message number: 151

• Message text: Area &1 already exists in target table

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message /RPM/MIGRATION151 - Area &1 already exists in target table ?

  The SAP error message /RPM/MIGRATION151 Area &1 already exists in target table typically occurs during a migration or data transfer process in SAP, particularly when using the SAP Real Estate Management (RE) module or similar functionalities. This error indicates that the system is trying to insert a record into a target table, but a record with the same key (in this case, the area identified by &1) already exists in that table.
  
  Cause:
  
  Duplicate Data: The most common cause of this error is that the data being migrated or transferred contains duplicates. The area specified by &1 is already present in the target table, which violates the uniqueness constraint of that table.
  Incorrect Mapping: There may be an issue with the mapping of source data to target data, leading to attempts to insert existing records.
  Incomplete Cleanup: If previous migration attempts were not fully completed or cleaned up, remnants of old data may still