A brand offers to open a paid post to every reader for a month. The reach sounds attractive, but the publisher still needs to know who funds access, what the sponsor may reuse, which readers receive the offer, and what happens when the sponsored period ends. A paywall opening is both an editorial decision and a rights transaction.
This guide uses two primary references: Substack: A new vision for sponsorships and Substack: A business model that works for creators. Product access, program eligibility, and platform rules can change, so verify the live account and current terms before acting.
Growit o1 is an expressive pocket AI device in development. Its current Sight workflow is an owner-triggered connected beta that requires a compatible connected service after setup. Final capabilities, supported services, pricing, and availability will be announced before sales open. In this guide, o1 is a deliberate review prompt rather than an autonomous publisher, account operator, or source of guaranteed performance.
Price the work, access grant, distribution, data, and reuse separately before calling a sponsored unlock a simple post placement.
Put the handoff on one page
| Checkpoint | Record |
|---|---|
| Editorial asset | Post, archive item, theme, author, and promised reader outcome |
| Access grant | Who reads free, start, end, geography, and conversion path |
| Sponsor rights | Name, mark, quote, screenshot, derivative, channel, and duration |
| Measurement | Eligible readers, opens, completion, upgrades, survey, and reporting window |
| Closeout | Access change, renewal owner, retained evidence, and correction path |
Translate the new format into a contract
Substack's October sponsorship announcement introduces upgrade, unlock, and masthead concepts for participating publishers. Availability is limited and evolving. Rewrite the chosen format in plain language: what becomes available, who pays, what the reader sees, and when normal access returns. Do not assume a mock-up, platform invitation, or Creator Kit replaces a signed scope.
Protect editorial independence
Name who chooses the topic, edits the work, approves sponsor language, and handles corrections. Separate the sponsor acknowledgment from the publisher's voice. Reject required claims that cannot be supported and disclose the commercial relationship where readers can understand it. A sponsor may fund access without gaining approval over unrelated editorial coverage.
Price every right
The earlier Substack business-model announcement describes native sponsorships and Creator Kits. Build a fee from creation, access value, distribution, exclusivity, brand reuse, measurement, revision load, and rush work. Limit the sponsor's right to quote or screenshot the article. If the brand wants derivatives, paid media, email-list use, or a longer campaign, add those rights explicitly.
Design the reader transition
Explain why the post is open, how long access lasts, and whether a free reader will be asked to pay later. Avoid dark patterns, surprise charges, or copy that makes sponsorship look like an independent endorsement. Use Growit's sponsorship finder to organize a lead, then verify the opportunity and contract manually. Review o1 privacy guidance before any connected review of subscriber or campaign data.
Measure trust as well as traffic
Record the baseline, eligible audience, completed reads, new free subscriptions, paid conversions, unsubscribes, replies, complaints, and survey method. Do not promise a sales result the publisher cannot control. Use o1 only as a deliberate preflight prompt: scope signed, disclosure clear, reuse bounded, reader transition tested, data minimized. The publisher retains final editorial and account control.
Keep the approved brief, source links, dated screenshots, owner names, and correction log together. A strong workflow makes the next decision inspectable without pretending that a tool, trend, or platform program guarantees reach, revenue, or safety.