How To Fix /ISDFPS/MM013 - MRP controller &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 013

• Message text: MRP controller &1 already exists

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM013 - MRP controller &1 already exists ?

  The SAP error message /ISDFPS/MM013 MRP controller &1 already exists typically occurs when you are trying to create a new MRP (Material Requirements Planning) controller in the system, but an entry with the same identifier already exists. This can happen in various scenarios, such as during the creation of a new MRP controller in the system or when trying to assign an existing controller to a material.
  
  Cause:
  
  Duplicate Entry: The most common cause of this error is that the MRP controller you are trying to create or assign already exists in the system.
  Data Entry Error: There may have been a mistake in the data entry, leading to an attempt to create a controller with an identifier that is already in use.
  System Configuration: The system may have been configured in such a way that it does not allow duplicate MRP controllers.
  
  
  Solution:
  
  
  Check Existing MRP Controllers: 
  
  Go to the transaction code MM02 (Change Material)