You’ve built an app that people want to use and that earns their trust. Now it’s time to get it in front of them. Publishing to the Marketplace means your app is available to anyone on Slack. How you present it, support it, and maintain it determines whether new users become long-term users.

Make your listing work for you

Start by giving your app a strong name: unique, easy to search, and easy to spell. A descriptive name makes it easy for people to find it by searching for what it does.

The character limit for your short description is 140 characters and can be truncated in search results and app profile cards. Every word needs to earn its place to have the most impact.

Use the long description to explain your app, state the problem it solves, and describe how it works in Slack. You get 4,000 characters for this one and you’ll need a minimum of 174 characters in this field.

If you include screenshots, they should show your app doing its job inside Slack. Real workflows in context are more compelling than abstract mockups. Adding text to screenshots can help provide context for what the viewer is seeing.

A short video (30–90 seconds) is one of the strongest things you can put on your listing. Show how your app works in a real Slack environment. Use a publicly accessible YouTube link with closed captioning on and ads disabled.

Make your landing page publicly accessible. Everything a visitor needs to decide (what the app does, your privacy policy, the install path) should be accessible without logging in. If your app requires an external account, the install flow should guide people through connecting or creating one.

Treat support as a product feature

Support isn’t a checkbox. Users experience your support the same way they experience your app. Make it easy to get help, and make the help good.

Provide a clear way for any user to reach you: email, a contact form, or a help channel. Don’t require them to create a separate account just to ask a question. Respond within 2 business days. Users who reach out are telling you they want to keep using your app.

Meeting them with a fast response keeps that commitment going both ways. Users notice which apps show up for them. Staying responsive signals that your app is actively maintained and worth keeping installed.

Maintain your listing after launch

Your listing represents a live product that people depend on. Update pricing, language support, and security details as they change. Claiming language support means your app works in that language, end to end.

Keep your developer and support contact details current. Subscribe to the Slack changelog to stay current with platform changes. Slack evolves alongside you, and staying in sync means your users always get the best experience.

What’s next

This post wraps up the foundation series. If you’ve followed along, you have the full picture: what the Marketplace is, whether your app belongs there, and how to build something people want to use. The series also covered earning trust through security and reliability, scoping permissions with the right token types, and what maintenance looks like after launch.

From here, the path depends on where you’re starting. Stay tuned for more content and walkthroughs to get you and your Slack app ready for the Marketplace!