Support chained automation execution from native actions, guard automation recursion depth, carry idempotency context through campaign-launched automations, allow team task assignment in backend action execution, and reject deletes while campaign steps still reference an automation.
Evaluate branch conditions relative to the previous send, defer while windows are still undecided, and let the routed pair finder handle deleted targets and loops at schedule time.
Store per-step branching conditions, validate branch targets, and select campaign contact steps by following the flow graph. Preserve linear progression for steps without branch conditions.