When you're creating items in BidJS, there are a number of fields and purchase options available — but not all fields are compatible with all item or purchase types. This guide outlines which combinations are valid so you know exactly what you can (and can’t) enter.
Item and Purchase Option Types
There are four item types:
Listing
Lot
Multi-Item
Webcast
And six purchase options:
None
Buy Now
Make Offer
Transfer
Tender
Tender_PCT
Each item can include up to eight fields:
Display Price
Unit of Measure
Purchase Price
Opening Bid
Bid Increment
Reserve Price
Quantity
Bidding Type (Per Lot / Per Item)
Table of Allowed Field Entries
The table below shows which fields can be used based on item type and purchase option.
A ✓ means the field can be filled in.
An X means the field must be left blank.
⚠️ Important:
Scroll the table below to the right to view all fields →
Item Type | Purchase Option | Display Price | Unit of Measure | Purchase Price | Opening Bid | Bid Increment | Reserve Price | Quantity | Bidding Type (Per Lot / Per Item) |
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Listing | NONE | ✓ | X | X | X | X | X | X | ✓ |
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Listing | BUY_NOW | ✓ | X | ✓ | X | X | X | X | ✓ |
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Listing | MAKE_OFFER | ✓ | X | ✓ | X | X | X | X | ✓ |
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Listing | TRANSFER | ✓ | X | X | X | X | X | X | X |
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Listing | TENDER | ✓ | ✓ | X | X | X | X | ✓ | X |
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Listing | TENDER_PCT | ✓ | ✓ | X | X | X | X | ✓ | X |
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Lot | NONE | X | X | X | ✓ | ✓ | ✓ | ✓ | ✓ |
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Lot | BUY_NOW | X | X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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Lot | MAKE_OFFER | X | X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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Lot | TRANSFER | Transfer not allowed for lot |
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Lot | TENDER | Tender not allowed for lot |
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Lot | TENDER_PCT | Tender% not allowed for lot |
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Multi-Item | NONE | ✓ | X | X | X | X | X | ✓ | X MUST BE BLANK |
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Multi-Item | BUY_NOW | ✓ | X | ✓ | X | X | X | ✓ | X MUST BE BLANK |
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Multi-Item | MAKE_OFFER | ✓ | X | ✓ | X | X | X | ✓ | X MUST BE BLANK |
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Multi-Item | TRANSFER | Transfer not allowed for multi-item |
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Multi-Item | TENDER | Tender not allowed for multi-item |
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Multi-Item | TENDER_PCT | Tender% not allowed for multi-item |
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Webcast | NONE | X | X MUST BE BLANK | X | ✓ | ✓ | X | ✓ | ✓ |
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Webcast | BUY_NOW | Buy Now not allowed for Webcast |
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Webcast | MAKE_OFFER | Make Offer not allowed for Webcast |
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Webcast | TRANSFER | Transfer not allowed for Webcast |
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Webcast | TENDER | Tender not allowed for Webcast |
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Webcast | TENDER_PCT | Tender% not allowed for Webcast |
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