How To Fix M3783 - Base unit of measure cannot be changed since EAN already assigned

M3783 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 783

• Message text: Base unit of measure cannot be changed since EAN already assigned

What causes this issue?

You have attempted to change the base unit of measure. This is not
allowed since an EAN has already been assigned to it.

System Response

The system cancels your change.

How to fix this error?

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3783 - Base unit of measure cannot be changed since EAN already assigned ?

  The SAP error message M3783, "Base unit of measure cannot be changed since EAN already assigned," typically occurs when you attempt to change the base unit of measure for a material that already has an EAN (European Article Number) assigned to it. The EAN is a unique identifier for products, and it is linked to the base unit of measure. Changing the base unit of measure after an EAN has been assigned can lead to inconsistencies in inventory management and product identification.
  
  Cause:
  
  EAN Assignment: The material has an EAN assigned, which is linked to the current base unit of measure.
  Data Integrity: SAP enforces data integrity rules to prevent changes that could lead to confusion or errors in inventory and sales processes.
  
  
  Solution:
  To resolve this error, you have a few options:
  
  
  Remove the EAN: If it is acceptable for your business process, you can remove the EAN from the material before changing the base