Onboarding Prerequisites

What we need from the demand partner, the publisher, and the GAM tag before a placement can serve.

1 · Demand partner (SSP)

Prebid bidder code + required params (e.g. placementId).
Placement ID for the right video format — instream ID for instream, outstream ID for outstream. critical
Publisher domain allowlisted at the SSP. critical

2 · Publisher

HTTPS site + the domain(s) for allowlisting.
Where the player goes (default auto-creates a mount; or an existing div id).
Consent/CMP if EU (GDPR) or US-state privacy applies.
Content video URL (.mp4/.m3u8) — instream only.

3 · GAM tag

Master video tag ending in correlator=, with output=vast and video sz= (e.g. 640x480).
Key-values: hb_pb, hb_bidder, hb_uuid, hb_size, hb_format, hb_adid.
VAST creative using %%PATTERN:hb_uuid%% + price-bucket line items ($0.10 steps) + a house fallback (hb_pb=0.00).

Instream vs outstream

	Instream	Outstream
Content video	Required	None
SSP placement ID	instream	outstream
Starts	on load (muted)	on scroll into view (muted)
When no fill	shows content	collapses (nothing shown)

~90% of "no ads" cases: domain not allowlisted, or the SSP placement ID is the wrong format (instream vs outstream). Check both first.

No ads showing? Check in order

Domain allowlisted at the SSP?
Placement ID matches the format (instream/outstream)?
GAM has line items/creatives that fill (+ house fallback)?
Load with ?debug=true: reaching STEP 7 = player works, it's a fill issue; stopping before = chase demand/GAM.