The Channel Settings tab includes the Schain Object Behavior selector, allowing you to configure the schain object in outbound ad requests.
Schain Object Behavior Options
Adtelligent provides five options for handling the supply chain:
- Append to supply chain
- Append to supply chain (completed)
- Override supply chain
- Pass schain without changes
- Do not pass supply chain
Upon selecting Append, Append (completed), or Override, 2 additional fields will appear:
Required and Optional Fields
asi (required) – The advertising system identifier, which is the canonical domain name of the SSP, Exchange, Header Wrapper, etc., that bidders connect to. This should match the value in the ads.txt file, if available. This field cannot be left blank.
sid (optional) – The seller ID associated with the advertising system. If left blank, ADT will use the channel ID as the sid.
Schain Behavior Details
- Append to supply chain: ADT appends asi and sid to the calls from sources at the end of the supply chain.
For the "Append to schain object" behavior - we inherit complete status from inbound ad requests, so the logic is as follows:
- no data in the inbound ad request > adding your Schain data from the Channel settings / Universal list per campaign > indicating Schain as "complete":0
- "complete:0" in the inbound ad request > adding your Schain data from the Channel settings / Universal list per campaign > indicating Schain as "complete":0
- "complete:1" in the inbound ad request > adding your Schain data from the Channel settings / Universal list per campaign > indicating Schain as "complete": 1
2. Append to supply chain (completed): ADT appends asi and sid to the ad requests from sources at the end of the supply chain, indicating that it’s complete.
3. Override supply chain: ADT overwrites the chain placing your sid and asi as initiator along with setting an indicator that the supply chain object is complete.
4. Pass schain without changes: ADT forwards the schain in outbound ad requests exactly as received in the inbound ad request.
5. Do not pass supply chain: ADT removes the schain object from the request and does not send it further.
Universal Lists and Priority
You can configure a specific schain sid and asi at the campaign level using the Universal lists (Schain SID, Schain ASI).
However, please note the following:
Universal lists apply only when Append, Append (completed), or Override behaviors are selected in Channel settings.
If both Channel settings and campaign-level Universal lists are configured, the Universal list takes higher priority.
Campaign-Level Control Over Schain
You can disable sending schain data specifically at the campaign level using the "Pass schain" toggle in the campaign's Advanced Settings.
- By default, this toggle is enabled.
- When disabled, Channel Schain settings and any Universal lists are ignored, and no schain data is sent to the advertiser.