How To Fix VL420 - Serial numbers can only be maintained for items assigned to a plant

VL420 - Overview

• Message type: E = Error

• Message class: VL -

• Message number: 420

• Message text: Serial numbers can only be maintained for items assigned to a plant

What causes this issue?

The item has not been assigned to a <GL:plant>plant</>.

System Response

The system does not allow serial number assignment for items which are
not assigned to plants.

How to fix this error?

If you want to maintain <GL:serial_number>serial numbers</> for this
item, enter a plant for the item.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VL420 - Serial numbers can only be maintained for items assigned to a plant ?

  The SAP error message VL420 indicates that serial numbers can only be maintained for items that are assigned to a specific plant. This error typically occurs during the processing of delivery documents when the system detects that the item in question does not have a plant assignment, which is necessary for managing serial numbers.
  
  Cause:
  
  Missing Plant Assignment: The item in the delivery does not have a plant assigned to it in the material master.
  Incorrect Material Type: The material type may not be configured to allow serial number management.
  
  Configuration Issues: The system may not be properly configured to handle serial numbers for the specific material or plant combination.
  
  
  Solution:
  To resolve the VL420 error, you can take the following steps:
  
  
  Check Material Master:
  
  Go to the material master record (transaction code MM03).
  Verify that the material has a plant assigned. If not, you need to create or update the material master record to include the relevant plant.
  
  
  
  Assign