No, Sulvo tags cannot be used as a line item or passback.
There are many features included with the Sulvo platform that are available to publishers by adding tags directly to the page.
For the best overall ad performance and access to all features, we continue to recommend loading Sulvo tags directly from the page.
Loading ads with a third-party system is not an explicitly supported method of loading ad units. Ads often receive lower demand when called within a third-party system, almost always load about 50-300ms slower, and can have technical issues that Sulvo cannot solve (especially with responsive ads).
Sulvo is not able to provide support to resolve issues caused by third-party ad loading. It is highly recommended to serve ads directly from the site to achieve higher ad rates, flawless rendering for all formats, and the maximum amount of ad requests.
For a full list of the Sulvo container features please go to sulvo.com/features.