Like the Sales Order which starts with estimate, I would like to see a sub-module for bidding! Simply, prior to create a PO, we must create PR (Purchasing Request). Create PR, get it approved by a user role, then the PR would be converted to RFQ/RFP (Request for Quotation or Request for Proposal). When the vendors send their quotes, we enter their prices in the comparison sheet which creates one or several POs based on my choice following the lowest price and the best specs (best offer per quoted item).

This will make my life (and other ZoHo clients as well) much easier and avoid doing this process manually on excel sheets which is the essential reason we go for smart platforms such as ZoHo.