how to enable Tax Classification Code field on the Requisition and Purchase Order in Responsive SSP

Summary:

We are implementing Responsive Self Service (Redwood design) Procurement for our client.

Our client have only the Manual Tax application applicable for Requisitions, Purchase Order, Change Orders, Payable Invoices, etc.

Hence we would need the 'Tax Classification Code' filed to be available on Create Purchase Requisition page and Create Purchase Order Page.

Please let us know the steps to enable the same

Version (include the version you are using, if applicable): 24C