Pause or resume a campaign

Writes the campaign's own on/off switch, then lets the platform cascade delivery to its ad sets and ads. Makes one platform API call, not one per ad.

The switch is always written, whatever delivery status the ads underneath report: an ad still in review does not block resuming its campaign. The echoed status is the confirmation that it landed.

updated / skipped describe only the ads whose own stored status CHANGED alongside it, so updated: 0 is a normal successful response, not a no-op. Ads are skipped when they are in a terminal status (rejected, completed, cancelled), already in the target state, or switched on but not yet delivering. The last group keeps its pending_review / error status until the platform reports what it became. skippedReasons names which case applies.

On Meta this flips the campaign only. An ad set paused in its own right stays paused, so pair this with PUT /v1/ads/ad-sets/{adSetId}/status when you also need the ad set switched back on.

Google keeps an independent on/off switch at campaign, ad group and ad level and the most restrictive one wins, so active switches the campaign on TOGETHER with the ad groups and ads Zernio tracks under it, in one mutate. Without that the campaign reads ENABLED while a paused ad group or ad keeps it from serving. paused writes the campaign alone, which already stops delivery and leaves each ad's own switch as you set it.