Independent checklist bundle

HubSpot Projects CLI checklist for the 2026 legacy public app creation sunset

Source-linked pages, a decision workflow, and buyer-ready checklists for teams creating new public apps with Projects-based CLI workflows.

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Abstract developer workflow panels for a Projects CLI skill pack

Independent educational guide. Not affiliated with, endorsed by, or sponsored by HubSpot. Verify critical commands and platform behavior against official HubSpot documentation before deploying.

Date	Who to check	What changes
2026-05-26	New developer accounts created on or after this date	New legacy public app creation is disabled
2026-06-23	Developer accounts created before 2026-05-26	New legacy public app creation is disabled
2026-10-31	Apps using classic or legacy CRM cards	Separate app-card modernization deadline

Quick Path Finder

Pick the closest situation. The result is a path to verify, not a guaranteed command.

Review the Projects-based app creation path and verify `hs project create` in the official create-app and project commands docs.

Scope

New legacy public app creation path, not existing app shutdown.

Output

Checklist, command map, tracker, and developer handoff.

Pages

Long-tail task pages mapped to official source links.

Core Guides

Each page targets a concrete search intent and links back to official HubSpot documentation.

Open FAQ

Understand the deadline and avoid overreacting.

HubSpot Legacy Public App Creation Sunset: May 26 and June 23, 2026

A source-linked explanation of who is affected by the HubSpot legacy public app creation sunset and what Projects CLI path to review next.

Open guide

Run a preflight before creating or migrating an app.

HubSpot Projects CLI Checklist

A practical preflight checklist for Projects CLI app creation, migration planning, app-hsmeta.json review, Marketplace readiness, and CI notes.

Open guide

Create a new app with the Projects-based workflow.

Use hs project create for a New HubSpot Marketplace App

How to think about the Projects CLI new app path for public or Marketplace app development after the legacy creation sunset.

Open guide

Decide whether this is a creation issue or a modernization issue.

Legacy Public App vs Projects App

A decision guide for understanding the difference between legacy public app creation and Projects-based app development.

Open guide

Choose the likely migration command path.

hs app migrate vs hs project migrate

A source-linked command decision guide for choosing which HubSpot migration path to verify.

Open guide

Avoid choosing an unsupported automatic path.

HubSpot Private App Projects Migration

A cautious guide to private app migration limitations and manual planning for Projects-based app workflows.

Open guide

Get the full Projects CLI Skill Pack

Includes the agent skill, command cheatsheet, checklist, CSV tracker, handoff template, and official source map.

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Official Sources

Legacy Public App Creation Sunset Create a new app using the CLI HubSpot CLI project commands

Independent educational guide. Not affiliated with, endorsed by, or sponsored by HubSpot. Verify critical commands and platform behavior against official HubSpot documentation before deploying.