Is it possible to write a validation on the redwood PR page on the Charge Account

Based on PR Line Level DFF (Project, Product codes) charge account segment will get updated.

Based on business Requirement,

We are looking Error Message at requisition Header level if any of below conditions failure

Condition-1: LOB# 201 & project code selected as should not be 000000(default)

Display message in Highlighted area if at least one of the line fails with above conditions.