Compare emails delivered with texts delivered over time for a campaign: up to 7 buckets (days, weeks or months), ending with the one that holds end_date. Test sends aren't counted.

Prerequisites: a bearer token and the campaign's id (campaignId).

Authentication: Account token. The campaign must belong to the caller's own company; otherwise 404.

Rate limit: 120 requests per minute, counted per user (the token’s user).