How To Fix FDM_MIRROR084 - Tab. FDM_CUST_MIRROR: external key (&1, &2, &3) exists more than once

FDM_MIRROR084 - Overview

• Message type: E = Error

• Message class: FDM_MIRROR - Mirror System Messages

• Message number: 084

• Message text: Tab. FDM_CUST_MIRROR: external key (&1, &2, &3) exists more than once

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 FDM_MIRROR084 - Tab. FDM_CUST_MIRROR: external key (&1, &2, &3) exists more than once ?

  The SAP error message FDM_MIRROR084 indicates that there is a duplicate entry for an external key in the FDM_CUST_MIRROR table. This typically occurs in the context of Financial Data Management (FDM) when the system detects that the same external key (which could be a combination of fields like customer ID, company code, etc.) is present more than once in the table.
  
  Cause:
  
  Data Duplication: The most common cause of this error is that the data being imported or processed contains duplicate entries for the specified external key.
  Incorrect Data Mapping: If the mapping of external keys to internal keys is not set up correctly, it can lead to duplicates being created.
  Integration Issues: If data is being pulled from multiple sources or systems, inconsistencies can arise, leading to duplicates.
  
  
  Solution:
  
  
  Identify Duplicates: 
  
  Query the FDM_CUST_MIRROR table to identify the duplicate entries for the external key. You can use SQL queries to find duplicates based on the