How To Fix MBCSEV001 - Entries with identical key fields exist

MBCSEV001 - Overview

• Message type: E = Error

• Message class: MBCSEV - Messages for Inbound Distribution

• Message number: 001

• Message text: Entries with identical key fields exist

What causes this issue?

Entries exist with identical key fields. The combination of
communication method, recipient address or address template, document
class and exit name has to be unique.

System Response

The affected lines are highlighted in red.

How to fix this error?

Delete duplicate entries.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

MBCSEV001 - Details

• The SAP error message MBCSEV001 indicates that there are entries with identical key fields in the system, which is causing a conflict. This error typically occurs in the context of material master data, inventory management, or similar modules where unique identifiers (keys) are required for records.
  
  Cause:
  The error arises when you attempt to create or modify a record in SAP that has a key field (or combination of key fields) that already exists in the database. This can happen in various scenarios, such as:
  
  Attempting to create a new material or document that has the same key as an existing one.
  Importing data that contains duplicates.
  Errors in data entry where the same identifier is mistakenly entered multiple times.
  
  
  Solution:
  To resolve the MBCSEV001 error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Use transaction codes like SE16 or SE11 to check the relevant database table for existing entries with the same key fields. This will help you identify