Update Campaignpatch https://a.klaviyo.com/api/campaigns/{id}Update a campaign with the given campaign ID.Rate limits:Burst: 10/sSteady: 150/m Scopes: campaigns:writePath ParamsidstringrequiredThe campaign ID to be retrievedQuery Paramsfields[campaign]array of stringsFor more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsetsfields[campaign]ADD stringBody ParamsUpdate a campaign and return itdataobjectrequireddata objectHeadersrevisionstringrequiredDefaults to 2026-04-15API endpoint revision (format: YYYY-MM-DD[.suffix])Responses 200Success 4XXClient Error 5XXServer ErrorUpdated over 1 year ago