An approval workflow is any process where a drafted post can’t publish until a designated reviewer signs off. The details that actually distinguish tools:
Internal vs. external
Internal approval means staff review other staff’s drafts before they go out — available on most tools at some tier, including Buffer’s Team plan and Later’s Growth tier. External (client-facing) approval means someone outside the organization — typically the client — reviews content, ideally without ever holding a login. HeyOrca and Sendible‘s Client Connect are both built around this specifically.
Single-stage vs. multi-stage
Single-stage means one reviewer, one yes/no. Multi-stage means a post moves through more than one reviewer in sequence — rarer, and usually reserved for higher pricing tiers across the tools we’ve profiled.
What happens when a review stalls
The failure that costs an agency money is rarely a rejected post. It is a post nobody opened until its publish date had passed. Tools differ on two things here: whether a review stage can carry a deadline at all, and what the tool does when that deadline passes. Some have no stage deadline. Some send a reminder and leave the post exactly where it is. RecurPost added stage deadlines of 4 hours to 7 days in September 2026 that hold, escalate, auto-approve or reschedule the post depending on how the owner set the stage, with warnings at 50% and 80% of the allowed time (disclosure: same team as this site). A feature list will describe all three as approval reminders, so the question to put to a vendor is which of them it means.
What to check before assuming a tool has this
Whether approval is included at the entry tier or gated higher — Sendible’s Core tier ($35/mo) has no approvals at all; they start at Plus ($99/mo). Whether a review stage can carry a deadline, and what the tool does when it passes. And whether a vendor’s pricing page and its feature pages agree on which plan the capability sits on — RecurPost’s currently do not (disclosure: same team as this site).
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