If a buyer goes on vacation or out of office on a business trip/training, he can setup vacation rules so that his approvals can be delegated some other person.

Navigation: PO Buyer responsibility -> Notification summary ->

PO Notification summary

Click on ‘Vacation Rules’

Vacation Rule

Click on ‘Create Rule’

Create Vacation Rule

Enter delegation details like item type to delegate, start and end date and name of the person to be delegated.

Delegation Details

Save the details.

Now based on effective dates the delegation of approvals will kick-off. To turn-off the delegation prior to end date you can follow the same navigation and delete the delegation rule.