Start delay modes value -2 means Generic Post-Roll
Generic post-roll: the ad plays after the content ends.
When to send it
Send -2 when the ad plays after the content finishes. Post-roll exists in web video, on-demand CTV, and podcasts, though it is the least used of the three positions.
Buyers usually value post-roll below pre-roll and mid-roll because many viewers leave when the content ends. It is confused with -1 and with large positive offsets near the end of the content; if the break follows the final segment, send -2.
Example
{
"imp": [
{
"audio": {
"startdelay": -2
}
}
]
}Fields that carry it
Other values in start delay modes
The start delay modes list page explains the whole list and its common mistakes.