How To Fix M3671 - Fixed lot size must be a multiple of the rounding value

M3671 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 671

• Message text: Fixed lot size must be a multiple of the rounding value

What causes this issue?

The lot size you have entered is not a multiple of the rounding value.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Enter an appropriate lot size.

Error message extract from SAP system. Copyright SAP SE.

M3671 - Details

• The SAP error message M3671, which states "Fixed lot size must be a multiple of the rounding value," typically occurs in the context of material management and production planning. This error indicates that the fixed lot size defined for a production or procurement process is not compatible with the rounding value specified for that material.
  
  Cause:
  
  Fixed Lot Size: This is the predetermined quantity of a material that is produced or procured in one batch.
  Rounding Value: This is the value to which the lot size is rounded. It is often defined to ensure that production or procurement quantities are in line with packaging, handling, or other operational constraints.
  Incompatibility: The error arises when the fixed lot size is not a multiple of the rounding value. For example, if the fixed lot size is set to 100 units and the rounding value is set to 20 units, this would be acceptable. However, if the