Micro-bidding Tool Summary Use the Micro-bidding Tool to assign different bids to specific Source IDs or Sub IDs. Before You Begin Role: Advertiser Required information: source IDs and/or Sub IDs Estimated time: 2-4 minutes Steps Locate the Black/Whitelist section and the Micro-bidding Rules field. Click Add bid rule to create a new bidding rule. Enter the Source IDs or Sub IDs and set a custom bid for them. Information: Micro-bidding rules override the default campaign bid for the specified Source IDs or Sub IDs. Repeat the process to create additional bidding rules if needed. Troubleshooting Issue: I don't know the Source IDs or Sub IDs Solution: use the {source_id} and {sub_id} parameters in your tracking URL or postback to identify traffic sources and sub-sources. Verification After saving the campaign, the configured source IDs or sub-source IDs will appear in the corresponding bid-rule field. Related Blacklist and Whitelist Targeting Traffic volume and bid recommendations Automatic Rules for Blacklisting