How To Fix PPH_MRP166 - Period lot sizes according to posting periods not supported in MRP Live

SAP Error Message - Details

• Message type: E = Error

• Message class: PPH_MRP -

• Message number: 166

• Message text: Period lot sizes according to posting periods not supported in MRP Live

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPH_MRP166 - Period lot sizes according to posting periods not supported in MRP Live ?

  The SAP error message PPH_MRP166 indicates that there is an issue with the configuration of lot sizes in the context of MRP Live (Material Requirements Planning Live). Specifically, this error occurs when the system encounters a lot size configuration that is based on posting periods, which is not supported in MRP Live.
  Cause:
  The primary cause of this error is that the lot size settings for the material in question are configured to use "period lot sizes" (e.g., monthly or weekly lot sizes based on posting periods). MRP Live does not support this type of lot size configuration, leading to the error when MRP Live tries to process the material.
  Solution:
  To resolve this error, you will need to change the lot size configuration for the affected material. Here are the steps you can take:
  
  
  Identify the Material: Determine which material is causing the error by checking the MRP run logs or the error message details.
  
  
  Check Lot Size Configuration:
  
  Go to the material master data for the affected material (Transaction Code: MM03).
  Navigate to the MRP view and check the lot size settings.
  
  
  
  Change Lot Size Type:
  
  If the lot size is set to a "period lot size" (e.g., monthly or weekly based on posting periods), change it to a different type of lot size that is supported by MRP Live. Common alternatives include:
  
  Fixed lot size
  Lot-for-lot (L4L)
  Economic Order Quantity (EOQ)
  
  
  Save the changes.
  
  
  
  Re-run MRP: After making the changes, re-run the MRP Live process to see if the error is resolved.
  
  
  Related Information:
  
  MRP Live: MRP Live is a more efficient and faster version of the traditional MRP process in SAP, designed to handle large volumes of data and provide real-time planning capabilities.
  Lot Size Types: Understanding the different types of lot sizes and their implications on inventory management and production planning is crucial. You can refer to SAP documentation for detailed descriptions of each lot size type.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates regarding this error message.
  
  If the issue persists after making the changes, consider consulting with your SAP support team or a functional consultant who specializes in MRP and production planning.