September 30, 2026 - Respondent API

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New feature: Custom age range targetingCreate Project and Update draft project now accept targetMinAge and targetMaxAge for B2B and B2C projects. Use them to target an exact age range instead of the fixed targetAgeGroups buckets. Both values are integers between 18 and 55, and both bounds are inclusive. Project responses also return targetMinAge and targetMaxAge.

{
  "targetMinAge": 25,
  "targetMaxAge": 34
}

targetMinAge/targetMaxAge and targetAgeGroups are mutually exclusive. Sending both returns a 400 error.
targetMinAge must be less than or equal to targetMaxAge. Otherwise the request returns a 400 error.
You can send a single bound for an open-ended range. On Update draft project, send a bound as null to clear it.

Existing integrations that use targetAgeGroups keep working unchanged.See Age targeting.