Persistent CTA Specification

A Persistent CTA is a call-to-action (CTA) button that appears on the video on both iOS and Android. This makes the call to action more conspicuous; users are more likely to realize that they can download the app or open the destination URL through the video experience. 

Technical Specifications

Vungle Exchange will indicate whether an impression opportunity is eligible for the Persistent CTA feature within the bid request. The Persistent CTA can be applied to full screen or MREC video formats. The DSP may opt out in the bid response. 

Bid Request

Not all video impression opportunities on Vungle Exchange are eligible for Persistent CTA. To properly communicate these opportunities, Vungle Exchange sends the BidRequest.imp.ext.pcta field with values ‘0’ or ‘1’ to indicate whether Persistent CTA is eligible.

{
	"id": "1234567893",
	"at": 2,
	"tmax": 120,
	"imp": [{
		"id": "1",
		"bidfloor": 0.03,
		"video": {...},
		"ext": {
                     		 "pcta": 0/1
		}
	}]
}

Bid Response

• To enable the Persistent CTA with app icon, the bundle ID within the BidResponse.seatbid.bid.bundle field is required for Vungle Exchange to add the proper assets (app icon) on the Persistent CTA button.
• If BidResponse.seatbid.bid.bundle is missing, the Persistent CTA button will be added to the video, but without the app icon.
• DSP can control Persistent CTA by using the BidResponse.seatbid.bid.ext.pcta.pctapage1 field, by passing ‘0’ or ‘1’. This is an optional field. However, if it’s omitted in the bid response, Vungle Exchange will treat it as having a value of ‘1’, meaning that Persistent CTA is enabled for DSPs' VAST video by default.
• For iOS, if SKOverlay is enabled, Persistent CTA will not pop up.

{
	"id": "1",
	"seatbid": [{
		"bid": [{
			"id": "2",
			"impid": "3",
			"price": 3.00,
			"nurl": "http://example.com/winnoticeurl",
			"adm": "",
                 		"attr": [13],
			"bundle" : "1234" 
                     		 "ext": {
                        			 "pcta": {
"pctapage1":0/1
}}
			}]
		}]
}