Restrict 0 List price for sales order line with a warning message

Summary:

We have a requirement to restrict the Order from submitting when there is a 0 price at the line level.

I came across the below Oracle document with a qroovy script for the same requirement, whereas when i deployed it in system it is throwing message for all line instead for only 0 list price.

Need you advice on where the issue exist in the groovy script given.

How To Validate - Zero Price Line on Sales Orders (Doc ID 2693806.1)

Content (please ensure you mask any confidential information):

Groovy script :

import oracle.apps.scm.doo.common.extensions.ValidationException;
import oracle.apps.scm.doo.common.extensions.Message;