Get Campaign Relationships Campaign Messagesget https://a.klaviyo.com/api/campaigns/{id}/relationships/campaign-messages/Returns the IDs of all messages associated with the given campaign.Rate limits:Burst: 10/sSteady: 150/m Scopes: campaigns:readPath ParamsidstringrequiredHeadersrevisionstringrequiredDefaults to 2023-12-15API endpoint revision (format: YYYY-MM-DD[.suffix])Responses 200Success 4XXClient Error 5XXServer ErrorUpdated over 2 years ago