How To Fix MD181 - Enter a gross lot size for the scenario

MD181 - Overview

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 181

• Message text: Enter a gross lot size for the scenario

What causes this issue?

The 'Use gross lot size' indicator was set for the long-term planning
scenario. However, no lot-sizing procedure has been entered. It is
necessary to enter the appropriate lot size if the same lot-sizing
procedure is to be used in long-term planning.

How to fix this error?

Enter a gross lot size or deselect the 'Use gross lot size' indicator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD181 - Enter a gross lot size for the scenario ?

  The SAP error message MD181, which states "Enter a gross lot size for the scenario," typically occurs in the context of Material Requirements Planning (MRP) when you are trying to create or modify a planning scenario in SAP. This error indicates that the system requires a gross lot size to be defined for the planning scenario you are working with.
  
  Cause:
  
  Missing Gross Lot Size: The most common cause of this error is that the gross lot size field is not filled in the planning scenario configuration. The gross lot size is essential for MRP calculations as it determines the minimum quantity that can be produced or procured.
  Incorrect Configuration: The planning scenario may not be properly configured, leading to missing parameters that are necessary for MRP processing.
  Data Entry Error: There might be a data entry error where the gross lot size was intended to be entered but was overlooked.
  
  
  Solution:
  To resolve the MD181