Ad Manager supports broadcast standard SCTE-35 signals for Dynamic Ad Insertion on live stream content. This allows you to use metadata from SCTE-35 markers to perform break-level ad targeting (for example, the first break in live sporting event). See the supported ad markers for HLS and DASH for markup details.
You can request a copy of the SCTE-35 specification at SCTE.org.
For any issues related to DAI troubleshooting or outages, contact publisher support.