How To Fix PPH_MRP018 - Planning run for material &1 in plant &2 has already been started

PPH_MRP018 - Overview

• Message type: E = Error

• Message class: PPH_MRP -

• Message number: 018

• Message text: Planning run for material &1 in plant &2 has already been started

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPH_MRP018 - Planning run for material &1 in plant &2 has already been started ?

  The SAP error message PPH_MRP018 indicates that a planning run for a specific material in a particular plant has already been initiated. This error typically occurs in the context of Material Requirements Planning (MRP) when a user attempts to start a new planning run for a material that is already being processed.
  
  Cause:
  
  Concurrent Planning Runs: The most common cause of this error is that a planning run for the specified material and plant is already in progress. SAP does not allow multiple planning runs for the same material and plant to avoid data inconsistencies.
  Long-Running Processes: If a previous planning run is taking longer than expected, it may still be active when a new planning run is attempted.
  System Locking: The system may have a lock on the material due to ongoing processes or transactions that are preventing a new planning run from being initiated.
  
  
  Solution:
  
  Check Active Planning Runs: Use transaction codes like MD04