Get Campaign IDs for Tagget https://a.klaviyo.com/api/tags/{id}/relationships/campaignsReturns the IDs of all campaigns associated with the given tag.Rate limits:Burst: 3/sSteady: 60/m Scopes: campaigns:read tags:readPath ParamsidstringrequiredThe Tag IDHeadersrevisionstringrequiredDefaults to 2026-04-15API endpoint revision (format: YYYY-MM-DD[.suffix])Responses 200Success 4XXClient Error 5XXServer ErrorUpdated over 1 year ago