How To Fix WER063 - Mapping already exists for item field &1

WER063 - Overview

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 063

• Message text: Mapping already exists for item field &1

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 WER063 - Mapping already exists for item field &1 ?

  SAP Error Message:
  WER063 - Mapping already exists for item field &1
  
  
  Cause:
  This error occurs when you try to create or assign a mapping for an item field that already has an existing mapping in the system. In other words, the system prevents duplicate mappings for the same item field because each field can only be mapped once.
  This typically happens in scenarios involving:
  
  Data migration or data transfer where field mappings are defined.
  Configuration of interfaces or IDocs where field mappings are maintained.
  Customizing or enhancement projects where field mappings are set up for data conversion or integration.
  
  
  
  Solution:
  To resolve the error:
  
  
  Check Existing Mappings:
  
  Review the current mappings for the item field mentioned in the error message.
  Use the relevant transaction or customizing path where mappings are maintained (e.g., in ALE/IDoc mapping, LSMW, or other data migration tools).
  
  
  
  Avoid Duplicate Entries:
  
  If a mapping already exists for the field, do not create a new one.
  Instead, modify or update the existing