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Bidding Rules

Campaigns using RTB and Prebid integrations support a set of bidding rules that give you enhanced control over both the price you receive from demand partners and the behavior of outbound bids.

How to Add a Bidding Rule

To add a bidding rule:

  1. Go to the RTB / Prebid campaign.
  2. Navigate to Basic Settings > Bidding Rules.
  3. Click + Rule.
  4. Select the desired rule.
  5. Click Save.

 

Available Bidding Options

1. Bidfloor (Campaign Ad Request Level)

  • Min/Max Bidfloor
    • Acts as a pre-filter at the ad request level.
    • Applied before any other rules (e.g., override floor).
    • Ad requests outside this range are filtered out before proceeding further.

2. Response Bid Rules (Bid Response Level)

  • Min/Max Response Bid
    • Applied at the response level.
    • Filters incoming bid responses based on the specified bid value range.

3. Fixed Floor

  • All incoming bids will be overwritten with the fixed value you set.
  • Example:
    • If you set $5, all bids will be sent to demand as $5, regardless of the original bid value (even if your supply partner sends a higher bid, the outbound bid will be always $5).

4. Override Floor

  • Only bids below the specified value are overwritten.
  • Higher bids remain unchanged.
  • Example:
    • You set $5. Incoming bids:
      • $2 → overwritten to $5
      • $5 → unchanged
      • $7 → unchanged

5. Add to Floor Price

  • A fixed amount is added to all incoming bids.
  • Example:
    • You set $5. Incoming bid is $2 → outbound bid becomes $7.

 

6. Add to Floor Price, %

  • A fixed % is added to all incoming bids.
  • Example:
    • You set 20%. Incoming bid is $2 → outbound bid becomes $2.4.

 

 

How These Rules Work with Tag-Based Supply Sources

When you connect tag-based supply sources to an RTB/Prebid campaign:

  • With "Fixed CPM/Floor price" pricing type - the system uses the advertiser floor CPM (defined on the supply source) as the base for all incoming bid requests.

 

Example Scenario

You set $5 as the minimum bidfloor, but the supply source has an advertiser floor CPM of $2:

  • All requests below $5 (e.g., $2) will be filtered out.

To fix this, you have two options:

  1. Increase the advertiser floor CPM on the supply source to $5
  2. Use the Override Floor set to $5 on the campaign
    • Requests under $5 will be overwritten to $5
    • Requests of $5 or more will remain unchanged
  • With "Share of revenue" pricing type - the system will use minimum possible bid of $0.01 (since there is no inbound bidfloor)

Important Best Practice

Do not use the Min Bidfloor and Override Floor together.

Why?

  • If you set both to $10:
    • The Min Bidfloor filters out all requests under $10
    • The Override Floor never gets a chance to apply

Recommended Approach:

  • If your goal is to only send requests at or above $10, use Override Floor = $10 only.
    • All requests below $10 will be adjusted
    • No requests will be filtered out
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