# \#oauth **URL:** https://community.hubspot.com/tag/oauth/586.md [Latest](https://community.hubspot.com/latest.md) · [Categories](https://community.hubspot.com/categories.md) · [Tags](https://community.hubspot.com/tags.md) --- ## [Choosing a distribution path before onboarding first design partners: install confirmation, private](https://community.hubspot.com/t/choosing-a-distribution-path-before-onboarding-first-design-partners-install-confirmation-private/163941)
**Author:** [@NAR27](https://community.hubspot.com/u/NAR27)\ **Replies:** 2\ **Last updated:** [November 5, 2026, 6:36pm UTC](https://community.hubspot.com/t/choosing-a-distribution-path-before-onboarding-first-design-partners-install-confirmation-private/163941 "2026-11-05T18:36:04Z")
We are preparing our first OAuth app for a HubSpot App Marketplace listing and are about to onboard our first external custom… --- ## [Which OAuth token endpoint does App Marketplace listing review accept: /oauth/v3/token or /oauth/202](https://community.hubspot.com/t/which-oauth-token-endpoint-does-app-marketplace-listing-review-accept-oauth-v3-token-or-oauth-202/163546)
**Author:** [@bodr1k](https://community.hubspot.com/u/bodr1k)\ **Replies:** 2\ **Last updated:** [November 5, 2026, 1:00pm UTC](https://community.hubspot.com/t/which-oauth-token-endpoint-does-app-marketplace-listing-review-accept-oauth-v3-token-or-oauth-202/163546 "2026-11-05T13:00:41Z")
Hi HubSpot team, I’m preparing Alignify (AI agents for HubSpot CRM, a public OAuth app) for an App Marketplace listing. The … --- ## [Can a marketplace OAuth app create custom event definitions in customer portals?](https://community.hubspot.com/t/can-a-marketplace-oauth-app-create-custom-event-definitions-in-customer-portals/162873)
**Author:** [@mashverse](https://community.hubspot.com/u/mashverse)\ **Replies:** 7\ **Last updated:** [November 2, 2026, 3:02pm UTC](https://community.hubspot.com/t/can-a-marketplace-oauth-app-create-custom-event-definitions-in-customer-portals/162873 "2026-11-02T15:02:08Z")
Hi all, I’m building a public app for the HubSpot Marketplace (developer platform 2026.03, OAuth). The app needs to create … --- ## [Meta Ads connection fails – OAUTHOR\_KEY\_NOT\_FOUND (Facebook OAuth authorization missing)](https://community.hubspot.com/t/meta-ads-connection-fails-oauthor-key-not-found-facebook-oauth-authorization-missing/163185)
**Author:** [@rawtime](https://community.hubspot.com/u/rawtime)\ **Replies:** 2\ **Last updated:** [October 30, 2026, 1:16am UTC](https://community.hubspot.com/t/meta-ads-connection-fails-oauthor-key-not-found-facebook-oauth-authorization-missing/163185 "2026-10-30T01:16:28Z")
Hello HubSpot Community, I’m using HubSpot Free and I’m unable to connect my existing Meta Ads account. When I try to conne… --- ## [Lead Forensics HubSpot App Setup Guide](https://community.hubspot.com/t/lead-forensics-hubspot-app-setup-guide/162845)
**Author:** [@loureiroj](https://community.hubspot.com/u/loureiroj)\ **Replies:** 0\ **Last updated:** [October 23, 2026, 3:11pm UTC](https://community.hubspot.com/t/lead-forensics-hubspot-app-setup-guide/162845 "2026-10-23T15:11:50Z")
As you integrate your ecosystems, you’ll empower your team with the necessary data to achieve your goals. With that in mind, … --- ## [API 400 Bad Request Loop - Create a Task From a Contact Record HubSpot Academy](https://community.hubspot.com/t/api-400-bad-request-loop-create-a-task-from-a-contact-record-hubspot-academy/161584)
**Author:** [@SophieA](https://community.hubspot.com/u/SophieA)\ **Replies:** 7\ **Last updated:** [October 20, 2026, 2:58pm UTC](https://community.hubspot.com/t/api-400-bad-request-loop-create-a-task-from-a-contact-record-hubspot-academy/161584 "2026-10-20T14:58:55Z")
Hello, I am stuck on the “Create a Task From a Contact Record” practical exercise. I have successfully built the task directl… --- ## [Max redirect URIs in the Oauth Application](https://community.hubspot.com/t/max-redirect-uris-in-the-oauth-application/161184)
**Author:** [@a.malysz](https://community.hubspot.com/u/a.malysz)\ **Replies:** 2\ **Last updated:** [October 9, 2026, 11:55am UTC](https://community.hubspot.com/t/max-redirect-uris-in-the-oauth-application/161184 "2026-10-09T11:55:11Z")
Hi all, We hit what looks like an undocumented limit on the number of redirectUrls an app can have on the developer platform… --- ## [Associations & Search rate limits for marketplace OAuth apps](https://community.hubspot.com/t/associations-search-rate-limits-for-marketplace-oauth-apps/160984)
**Author:** [@rodrigo.estrela](https://community.hubspot.com/u/rodrigo.estrela)\ **Replies:** 3\ **Last updated:** [October 6, 2026, 2:49pm UTC](https://community.hubspot.com/t/associations-search-rate-limits-for-marketplace-oauth-apps/160984 "2026-10-06T14:49:44Z")
Hi all, Our app is a marketplace OAuth app on developer platform 2026.03. We want to be sure it can’t use up limits our cust… --- ## [Issue with make hubspot module to integrate with access issue](https://community.hubspot.com/t/issue-with-make-hubspot-module-to-integrate-with-access-issue/159843)
**Author:** [@Maria\_Frontleft](https://community.hubspot.com/u/Maria_Frontleft)\ **Replies:** 3\ **Last updated:** [October 1, 2026, 4:43am UTC](https://community.hubspot.com/t/issue-with-make-hubspot-module-to-integrate-with-access-issue/159843 "2026-10-01T04:43:07Z")
Hi, I’m facing an issue while integrating HubSpot with some of its modules, specifically “Create a Note” and \*\*“Watch Deal.” … --- ## [Policy clarification: companion Chrome extension on HubSpot workflow pages](https://community.hubspot.com/t/policy-clarification-companion-chrome-extension-on-hubspot-workflow-pages/160167)
**Author:** [@LorenzoS](https://community.hubspot.com/u/LorenzoS)\ **Replies:** 3\ **Last updated:** [September 28, 2026, 8:16pm UTC](https://community.hubspot.com/t/policy-clarification-companion-chrome-extension-on-hubspot-workflow-pages/160167 "2026-09-28T20:16:48Z")
Hi everyone, I’m looking for guidance on whether a companion Chrome extension architecture is compatible with HubSpot’s deve… --- ## [User-level app can't create notes (403) despite all write scopes](https://community.hubspot.com/t/user-level-app-cant-create-notes-403-despite-all-write-scopes/159818)
**Author:** [@michael3](https://community.hubspot.com/u/michael3)\ **Replies:** 5\ **Last updated:** [September 28, 2026, 12:26pm UTC](https://community.hubspot.com/t/user-level-app-cant-create-notes-403-despite-all-write-scopes/159818 "2026-09-28T12:26:32Z")
App 54493376, account 149410573 (EU), platform 2026.09, isUserLevel: true, installed via /oauth/authorize/user, AUP signed. T… --- ## [Public (legacy) app — incremental scope re-authorization fails with "app governance settings" error](https://community.hubspot.com/t/public-legacy-app-incremental-scope-re-authorization-fails-with-app-governance-settings-error/158577)
**Author:** [@developer](https://community.hubspot.com/u/developer)\ **Replies:** 9\ **Last updated:** [September 22, 2026, 2:32pm UTC](https://community.hubspot.com/t/public-legacy-app-incremental-scope-re-authorization-fails-with-app-governance-settings-error/158577 "2026-09-22T14:32:10Z")
We provide an iPaaS service. We created a public app on the legacy app platform and issue its client\_id to our customers. Eac… --- ## [HubSpot OAuth Token Endpoint does not validate client\_id on refresh\_token Grants?](https://community.hubspot.com/t/hubspot-oauth-token-endpoint-does-not-validate-client-id-on-refresh-token-grants/158618)
**Author:** [@KeerthanaJ](https://community.hubspot.com/u/KeerthanaJ)\ **Replies:** 2\ **Last updated:** [September 10, 2026, 10:57pm UTC](https://community.hubspot.com/t/hubspot-oauth-token-endpoint-does-not-validate-client-id-on-refresh-token-grants/158618 "2026-09-10T22:57:27Z")
According to HubSpot’s official documentation, passing a valid, matching ‘client\_id’ is mandatory. If an incorrect client ID… --- ## [Browser cookies issue when connecting an OAUTh project](https://community.hubspot.com/t/browser-cookies-issue-when-connecting-an-oauth-project/157126)
**Author:** [@sujithgangaraju](https://community.hubspot.com/u/sujithgangaraju)\ **Replies:** 1\ **Last updated:** [August 26, 2026, 1:57pm UTC](https://community.hubspot.com/t/browser-cookies-issue-when-connecting-an-oauth-project/157126 "2026-08-26T13:57:23Z")
I have created a new OAuth project using the HubSpot CLI named pfkhubspotintegration-App. I am trying to connect this OAuth a… --- ## [PATCH /crm/v3/objects/contacts started returning 403 "CRM\_ACCESS or CONTACTS\_READ"](https://community.hubspot.com/t/patch-crm-v3-objects-contacts-started-returning-403-crm-access-or-contacts-read/156420)
**Author:** [@LucasBry](https://community.hubspot.com/u/LucasBry)\ **Replies:** 7\ **Last updated:** [August 19, 2026, 12:44pm UTC](https://community.hubspot.com/t/patch-crm-v3-objects-contacts-started-returning-403-crm-access-or-contacts-read/156420 "2026-08-19T12:44:23Z")
Hi all, We have a marketplace app (OAuth, portal-level, isUserLevel: false) that creates contacts and writes timeline events… --- ## [Alternative for Public Apps like SECRETS?](https://community.hubspot.com/t/alternative-for-public-apps-like-secrets/151467)
**Author:** [@ramkumar1021](https://community.hubspot.com/u/ramkumar1021)\ **Replies:** 9\ **Last updated:** [August 19, 2026, 11:10am UTC](https://community.hubspot.com/t/alternative-for-public-apps-like-secrets/151467 "2026-08-19T11:10:36Z")
Hi Community and Hubspot Dev/Support team, Doing a integration for a Platform ! Does anybody know a way to store configurat… --- ## [I was automatically opted-into to the new seamless install flow](https://community.hubspot.com/t/i-was-automatically-opted-into-to-the-new-seamless-install-flow/156072)
**Author:** [@pnardmann](https://community.hubspot.com/u/pnardmann)\ **Replies:** 7\ **Last updated:** [August 17, 2026, 4:22am UTC](https://community.hubspot.com/t/i-was-automatically-opted-into-to-the-new-seamless-install-flow/156072 "2026-08-17T04:22:13Z")
Although the documentation states here that the new seamless install flow is only required by October 26th, when I start my l… --- ## [Unable to install an unverified app](https://community.hubspot.com/t/unable-to-install-an-unverified-app/156069)
**Author:** [@Marklin](https://community.hubspot.com/u/Marklin)\ **Replies:** 2\ **Last updated:** [August 17, 2026, 4:15am UTC](https://community.hubspot.com/t/unable-to-install-an-unverified-app/156069 "2026-08-17T04:15:40Z")
Hi, I’m developing my custom app under Marketplace (Public) Distribution, but I’m unable to install it. On the app installat… --- ## [Optional custom channel scopes still treated as required during OAuth installation](https://community.hubspot.com/t/optional-custom-channel-scopes-still-treated-as-required-during-oauth-installation/154647)
**Author:** [@harry\_hou](https://community.hubspot.com/u/harry_hou)\ **Replies:** 3\ **Last updated:** [August 7, 2026, 8:50am UTC](https://community.hubspot.com/t/optional-custom-channel-scopes-still-treated-as-required-during-oauth-installation/154647 "2026-08-07T08:50:46Z")
Hi everyone, I'm seeing what appears to be unexpected behavior with optional OAuth scopes for a Public App. ## Our setup -… --- ## [6 Silent Integration Issues That Don't Show Up Until After Go-Live](https://community.hubspot.com/t/6-silent-integration-issues-that-dont-show-up-until-after-go-live/155214)
**Author:** [@SamuelOliver](https://community.hubspot.com/u/SamuelOliver)\ **Replies:** 4\ **Last updated:** [August 5, 2026, 6:04am UTC](https://community.hubspot.com/t/6-silent-integration-issues-that-dont-show-up-until-after-go-live/155214 "2026-08-05T06:04:05Z")
One thing I’ve noticed across CRM and ERP integrations is that the initial sync isn’t usually the hard part. The difficult p… --- ## [Claude connector error](https://community.hubspot.com/t/claude-connector-error/155274)
**Author:** [@barbdebb4411](https://community.hubspot.com/u/barbdebb4411)\ **Replies:** 3\ **Last updated:** [August 5, 2026, 2:58am UTC](https://community.hubspot.com/t/claude-connector-error/155274 "2026-08-05T02:58:15Z")
I’m using Claude’s HubSpot connector (OAuth integration, not a private app token) with Notes and Tasks scopes explicitly gran… --- ## [Integration OAuth fails - cannot find and accept acceptable use policy](https://community.hubspot.com/t/integration-oauth-fails-cannot-find-and-accept-acceptable-use-policy/154477)
**Author:** [@oscarluthje](https://community.hubspot.com/u/oscarluthje)\ **Replies:** 2\ **Last updated:** [July 29, 2026, 12:25am UTC](https://community.hubspot.com/t/integration-oauth-fails-cannot-find-and-accept-acceptable-use-policy/154477 "2026-07-29T00:25:47Z")
I’m trying to develop a HubSpot integration with Bunny that we’d like to offer on the marketplace eventually. A month ago or … --- ## [Developer Projects OAuth never redirects after consent (Marketplace App)](https://community.hubspot.com/t/developer-projects-oauth-never-redirects-after-consent-marketplace-app/153155)
**Author:** [@mrrodger](https://community.hubspot.com/u/mrrodger)\ **Replies:** 2\ **Last updated:** [July 16, 2026, 11:02am UTC](https://community.hubspot.com/t/developer-projects-oauth-never-redirects-after-consent-marketplace-app/153155 "2026-07-16T11:02:31Z")
Hi everyone, I’m hoping someone from the HubSpot Developer team can help. We’re building a Marketplace OAuth app using the … --- ## [Seamless install flow blocked: "not migrated" error, but no "Enable seamless install flow" option vi](https://community.hubspot.com/t/seamless-install-flow-blocked-not-migrated-error-but-no-enable-seamless-install-flow-option-vi/153025)
**Author:** [@Autohive](https://community.hubspot.com/u/Autohive)\ **Replies:** 3\ **Last updated:** [July 16, 2026, 10:14am UTC](https://community.hubspot.com/t/seamless-install-flow-blocked-not-migrated-error-but-no-enable-seamless-install-flow-option-vi/153025 "2026-07-16T10:14:28Z")
Hi HubSpot team, I’m trying to publish our app’s Marketplace listing but I’m blocked by this validation error under Install … --- ## [BAD\_REFRESH\_TOKEN Error Even Though App is Still Installed](https://community.hubspot.com/t/bad-refresh-token-error-even-though-app-is-still-installed/151316)
**Author:** [@activepieces](https://community.hubspot.com/u/activepieces)\ **Replies:** 4\ **Last updated:** [July 10, 2026, 4:08pm UTC](https://community.hubspot.com/t/bad-refresh-token-error-even-though-app-is-still-installed/151316 "2026-07-10T16:08:36Z")
Hey folks, One of our users is consistently getting this error when we try to refresh their access token via POST \`\`https://api.hubapi.com/oauth/v1/token: { "error": "invalid\_grant", "error\_description": "missing o… --- ## [API access and client\_credentials flow alternatives](https://community.hubspot.com/t/api-access-and-client-credentials-flow-alternatives/151857)
**Author:** [@richardmanifesto](https://community.hubspot.com/u/richardmanifesto)\ **Replies:** 4\ **Last updated:** [July 8, 2026, 9:16am UTC](https://community.hubspot.com/t/api-access-and-client-credentials-flow-alternatives/151857 "2026-07-08T09:16:07Z")
Hiya, From what I understand it looks like Legacy Private Apps are being sunsetted (and as of June 23, 2026 can no longer be created), so I have been looking at creating an app in order to grant API access. However, fro… --- ## [OAuth app install blocked — "acceptable use policy not signed" (App ID 44787997)](https://community.hubspot.com/t/oauth-app-install-blocked-acceptable-use-policy-not-signed-app-id-44787997/151997)
**Author:** [@panduartanaputra](https://community.hubspot.com/u/panduartanaputra)\ **Replies:** 1\ **Last updated:** [July 6, 2026, 7:47am UTC](https://community.hubspot.com/t/oauth-app-install-blocked-acceptable-use-policy-not-signed-app-id-44787997/151997 "2026-07-06T07:47:03Z")
Hi all, I’ve built a public OAuth app on the developer projects platform (distribution: marketplace, auth: OAuth) so our product’s clients can connect their own HubSpot accounts to us. When installing/authorizing it, th… --- ## [MCP Auth Apps — how to become a verified app and distribution limits?](https://community.hubspot.com/t/mcp-auth-apps-how-to-become-a-verified-app-and-distribution-limits/147882)
**Author:** [@ECox13](https://community.hubspot.com/u/ECox13)\ **Replies:** 4\ **Last updated:** [April 4, 2026, 10:49am UTC](https://community.hubspot.com/t/mcp-auth-apps-how-to-become-a-verified-app-and-distribution-limits/147882 "2026-04-04T10:49:24Z")
We’ve built an AI tool that connects to HubSpot via an MCP Auth App (created through the self-service flow at Development → MCP Auth Apps), using the official Remote MCP Server at mcp.hubspot.com with OAuth 2.1 + PKCE. … --- ## [Removing the "unverified app" red banner for an MCP Auth App in beta](https://community.hubspot.com/t/removing-the-unverified-app-red-banner-for-an-mcp-auth-app-in-beta/151495)
**Author:** [@TWINTIM](https://community.hubspot.com/u/TWINTIM)\ **Replies:** 2\ **Last updated:** [June 26, 2026, 4:07pm UTC](https://community.hubspot.com/t/removing-the-unverified-app-red-banner-for-an-mcp-auth-app-in-beta/151495 "2026-06-26T16:07:38Z")
Hi team, We’ve built Twin (build.twin.so), an AI agent platform connected to HubSpot via an MCP Auth App (Development → MCP Auth Apps, OAuth 2.1 + PKCE on mcp.hubspot.com). On install, users see the red “unverified app… --- ## [404 Error on note association endpoint](https://community.hubspot.com/t/404-error-on-note-association-endpoint/150172)
**Author:** [@TReynaud](https://community.hubspot.com/u/TReynaud)\ **Replies:** 2\ **Last updated:** [June 25, 2026, 2:56pm UTC](https://community.hubspot.com/t/404-error-on-note-association-endpoint/150172 "2026-06-25T14:56:28Z")
Hi HubSpot team, I’m seeing an unexpected 404 when trying to associate an existing note with a company using the documented dated Notes API endpoint. Docs reference this shape: PUT /crm/objects/2026-03/notes/{noteId}/… [Next page](https://community.hubspot.com/tag/oauth/586.md?match_all_tags=true&page=1&tags%5B%5D=oauth)