How To Fix M3307 - Material already maintained for this transaction/event

M3307 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 307

• Message text: Material already maintained for this transaction/event

What causes this issue?

The material master record already exists for the chosen view or
organizational level.

How to fix this error?

Check your entries and, if necessary, correct them. Alternatively,
call up the material master record in Change mode.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3307 - Material already maintained for this transaction/event ?

  The SAP error message M3307 ("Material already maintained for this transaction/event") typically occurs when you attempt to perform a transaction related to a material that has already been processed for the specific event or transaction type in question. This can happen in various scenarios, such as during inventory management, goods movements, or when trying to create or change a material document.
  Causes:
  
  Duplicate Entry: The material has already been processed for the same transaction type, leading to a duplicate entry.
  Transaction Lock: The material might be locked due to another transaction being processed simultaneously.
  Incorrect Data Entry: There may be an attempt to enter data that is not valid for the current state of the material.
  
  Configuration Issues: There could be issues with the configuration of the material management module that prevent the transaction from being completed.
  
  Solutions:
  
  Check Existing Transactions: Review the transaction history for the material to confirm if it has already been processed. You