Planners want to notify buyers before sumitting the PO for approval

Summary:

We have a business scenario where, upon releasing planned orders for purchased items, the planner must notify the 'Buyer' that the purchase order requires attention before approval.

Is there an option available in the planner workbench that allows the planner to flag and inform the buyer about the required review for that item?

Content (please ensure you mask any confidential information):

Is there an option available in the planner workbench that allows the planner to flag and inform the buyer about the required review for that item?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):