8. A use case show how to work with Pre-bid and Post-bid.


You can use reverse auction for one item, or you can use reverse auction for a group of items for bidders to bid. We call a group of items a "LOT". In most cases, buyers will sort "lots" based on shipping locations, raw materials, production processes and awarding strategies.


What is lotting strategy?


A Lot is a group of bidding items, which are grouped according to the delivery location (e.g. shipping to Boston or Houston), raw materials (e.g. plastic labels or aluminum labels), production processes (e.g. through hole technology or surface mount  technology), or award strategy (such as individual awards or winner-take-all).

The bidder enters the price for each item in each Lot, and the Excel table should automatically calculate the subtotal (the unit price of the item multiplied by the quantity). The bidder just needs to enter the subtotal value on the bidding page. The subtotal value has to follow the bid decrement policy.




Multiple items reverse auction showcase 

Let's say buyer needs to purchase a number of diodes in large quantities, with a total of 19 different specifications, divided into three Lots based on size and quantity. This form is called "Bidding Worksheet".






We put the Bidding Worksheet as an attachment in the RFX so that the suppliers can download it.
Basically, the supplier only needs to enter the unit price in the orange box, and Excel will automatically calculate the total price for that Lot. The supplier then enters the total price of each Lot into the bidding page.

During the live bidding, the supplier can modify the unit prices of the items in the Excel table, and then input the total price of that Lot into the system.





Best Practices

Because the total price of each Lot can only be seen during the bidding, the buyer may be concerned about the reliability of the supplier's detailed pricing. Here we provide the best practices for RFX using lots.

  1. Before the RFX is published, we prepare an exact copy of the Excel file which contains the Lot details. One is named the Initial Bid Worksheet, and the other is named the Final Bid Worksheet and upload them as attachment in the RFX.
  2. Suppliers are required to send their stamped Initial Bid Worksheet with initial prices prior to the start of the auction.
  3. After the bidding is over, suppliers are required to send their stamped Final Bid Worksheet with the total price values matching the final prices submitted online during 



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