Custom Auction Currencies

Auction owners and admins can configure auction-specific currencies, including denomination-based systems like Gold/Silver/Copper.

What this enables

• Multiple currencies per auction with conversion rates to a shared base unit
• Integer-only or decimal input behavior per currency
• Rule-based bid validation (minimum increment, denomination ratio rules)
• Consistent bid ordering using normalized values

Configure currencies

1. Open the auction and go to Settings.
2. Open the currencies section.
3. Add a currency profile with:
   • Name, code, symbol
   • Conversion rate to base currency
   • Fraction mode (integer-only or decimal)
   • Input mode (scalar or denomination)
4. Optionally set rules like minimum increment or minimum component ratio.

Bidding behavior

• Scalar currency mode: bidders enter one numeric value.
• Denomination mode: bidders enter values per configured component.
• All bids are normalized to base units for comparison.
• Equal normalized bids are rejected as not higher.

Validation messages

If a bid fails rules, the bid form shows explicit violation feedback, such as:

• Bid must be strictly higher than current highest bid
• Minimum increment not met
• Minimum component ratio not met
• Required denomination component missing