Campaigns guides

CampaignsBeginnerPreparing a contact list: E.164, deduplication and cleaningHow the importer reads your file, what E.164 means, why duplicates are merged, how invalid rows are reported, and how to keep a list healthy over time.2 min readUpdated 22 Aug 2026 CampaignsIntermediateGSM-7 vs Unicode: how message length really worksWhy one message costs one segment and another three, which characters switch the encoding, how concatenation works and how to write for a single segment.2 min readUpdated 15 Aug 2026 CampaignsIntermediateScheduling a campaign across time zonesFixed moment, local window or drip: which to use, how zones are resolved from numbers, and what happens at the edges of a window.2 min readUpdated 5 Aug 2026 CampaignsIntermediateMeasuring what a campaign actually didDelivery is not the result. Tracking links, conversions, opt-out rate and cost per outcome, with the numbers worth comparing between sends.2 min readUpdated 20 Jul 2026