Meta Marketing API v27 widens device-targeted Sales ad sets by default
· 2h ago · Originally reported by PPC Land
Meta's Marketing API version 27.0, effective today, expands new device-targeted Sales ad sets by default, with the change rolling out to all API versions in roughly 90 days. Some catalog and lookalike audience API calls will no longer work under the new version.
Why it matters
Default widening of targeting can change how advertisers' budgets are spent without them opting in, and breaking catalog or lookalike calls requires developers to update integrations before the deadline.
Explain it like I’m new here
It's like a music app that starts playing songs from a bigger playlist by default and removes a few old buttons you used to use.
Terms in this story
Lookalike audience
A lookalike audience is a group of new people who statistically resemble an advertiser's existing customers or best users, found by a model to extend reach beyond known contacts.
Audience segment
An audience segment is a group of people or devices defined by shared characteristics, such as demographics, interests, purchase behaviour or intent, used to target or measure advertising.
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