How To Fix 3W111 - Duplicate key. Mark only one entry for each defined key.

3W111 - Overview

• Message type: E = Error

• Message class: 3W - HR: Message Class South Africa

• Message number: 111

• Message text: Duplicate key. Mark only one entry for each defined key.

What causes this issue?

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

More than 1 scheme has been proposed .

How to fix this error?

Mark 1 scheme only per defined key.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 3W111 - Duplicate key. Mark only one entry for each defined key. ?

  The SAP error message 3W111: Duplicate key. Mark only one entry for each defined key typically occurs when there is an attempt to create or modify a record in a database table where a unique key constraint is violated. This means that the system has detected that there are multiple entries with the same key value, which is not allowed.
  
  Cause:
  
  Duplicate Entries: The most common cause is that there are already existing entries in the database that have the same key values you are trying to enter.
  Incorrect Data Entry: Users may inadvertently enter the same key value multiple times.
  Data Migration Issues: If data has been migrated from another system, it may contain duplicates that violate the unique key constraints.
  Configuration Errors: In some cases, the configuration of the system may allow for duplicate entries when it should not.
  
  
  Solution:
  
  Check Existing Records: Review the existing records in the database table to identify any duplicates.