What they do
An automation watches a table (create, update, or a condition you set) and then sends email, updates fields, or calls a webhook. The number of automations is limited by plan; Pro can be unlimited.
Setup
Open Automations, pick the table, the trigger, and the actions. Test with a record you can afford to touch. Automations do not run for viewers, and a read-only workspace (expired trial or cancelled plan) will not keep writing via automations either.