How To Fix RMST1102 - Entry with this key already exists; choose a different one

SAP Error Message - Details

• Message type: E = Error

• Message class: RMST1 - RMS-TLS: Messages

• Message number: 102

• Message text: Entry with this key already exists; choose a different one

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RMST1102 - Entry with this key already exists; choose a different one ?

  The SAP error message RMST1102, which states "Entry with this key already exists; choose a different one," typically occurs when you are trying to create or modify an entry in the system that conflicts with an existing entry. This can happen in various contexts, such as when creating master data, configuration settings, or transactional data.
  
  Cause:
  
  Duplicate Key: The most common cause is that the key (such as a unique identifier, code, or name) you are trying to use already exists in the database. This could be a material number, vendor code, customer ID, etc.
  Data Entry Error: Sometimes, the error may arise from a simple typographical error where the user mistakenly tries to enter a key that is already in use.
  System Configuration: In some cases, the system configuration may enforce unique constraints on certain fields, leading to this error when attempting to create a new entry.
  
  
  Solution:
  
  Check Existing Entries: Before creating a new