# Develop, Build & Integrate

**URL:** https://community.hubspot.com/c/develop-build-integrate/58.md?page=14

[Latest](https://community.hubspot.com/latest.md) · [Categories](https://community.hubspot.com/categories.md) · [Tags](https://community.hubspot.com/tags.md)

**Page:** 15

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## [Hubdb data prepopulate on hubspot form](https://community.hubspot.com/t/hubdb-data-prepopulate-on-hubspot-form/155901)

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**Author:** [@vinayakhnr6](https://community.hubspot.com/u/vinayakhnr6)\
**Replies:** 2\
**Last updated:** [August 12, 2026, 2:14pm UTC](https://community.hubspot.com/t/hubdb-data-prepopulate-on-hubspot-form/155901 "2026-08-12T14:14:35Z")

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Hi guys, am facing an issue with pre-populating contact properties in a form. I am using HubDB to store the contact properti…

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## [Page speed perfomance](https://community.hubspot.com/t/page-speed-perfomance/100926)

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**Author:** [@ARamanovich](https://community.hubspot.com/u/ARamanovich)\
**Replies:** 8\
**Last updated:** [August 12, 2026, 11:06am UTC](https://community.hubspot.com/t/page-speed-perfomance/100926 "2026-08-12T11:06:54Z")

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We are currently working on enhancing the performance of our website, and one area we’ve identified for improvement is the si…

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## [Data capture on custom form](https://community.hubspot.com/t/data-capture-on-custom-form/74112)

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**Author:** [@APatel68](https://community.hubspot.com/u/APatel68)\
**Replies:** 1\
**Last updated:** [August 11, 2026, 6:08pm UTC](https://community.hubspot.com/t/data-capture-on-custom-form/74112 "2026-08-11T18:08:48Z")

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Hi, I have a form created on landing page. The always create new contact for email address is set to off. I want to send th…

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## [Breaking Change: CRM API Write Validation Enforcement Starting with the 2026-09 API Version](https://community.hubspot.com/t/breaking-change-crm-api-write-validation-enforcement-starting-with-the-2026-09-api-version/155819)

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**Author:** [@dennisedson](https://community.hubspot.com/u/dennisedson)\
**Replies:** 1\
**Last updated:** [August 11, 2026, 5:56pm UTC](https://community.hubspot.com/t/breaking-change-crm-api-write-validation-enforcement-starting-with-the-2026-09-api-version/155819 "2026-08-11T17:56:39Z")

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Starting with the /2026-09/ API version shipping on September 8, 2026, HubSpot will enforce admin-configured validation rules…

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## [How can I get the app reviewer to update documentation in HubSpot?](https://community.hubspot.com/t/how-can-i-get-the-app-reviewer-to-update-documentation-in-hubspot/152489)

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**Author:** [@composio](https://community.hubspot.com/u/composio)\
**Replies:** 1\
**Last updated:** [August 11, 2026, 11:52am UTC](https://community.hubspot.com/t/how-can-i-get-the-app-reviewer-to-update-documentation-in-hubspot/152489 "2026-08-11T11:52:44Z")

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Hi all, we’re trying to submit our app for listing, but the automated reviewer keeps flagging an issue with our documentation…

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## [Custom quote property gets silently overwritten by an unrelated save in the quote editor](https://community.hubspot.com/t/custom-quote-property-gets-silently-overwritten-by-an-unrelated-save-in-the-quote-editor/155525)

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**Author:** [@huzaifasr](https://community.hubspot.com/u/huzaifasr)\
**Replies:** 3\
**Last updated:** [August 10, 2026, 3:12pm UTC](https://community.hubspot.com/t/custom-quote-property-gets-silently-overwritten-by-an-unrelated-save-in-the-quote-editor/155525 "2026-08-10T15:12:10Z")

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We built a workflow that writes a custom checkbox property on the Quote object, called requires\_approval, used together with …

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## [Stuck Migration for Legacy CRM card to new App Card](https://community.hubspot.com/t/stuck-migration-for-legacy-crm-card-to-new-app-card/154846)

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**Author:** [@dish205](https://community.hubspot.com/u/dish205)\
**Replies:** 4\
**Last updated:** [August 10, 2026, 10:20pm UTC](https://community.hubspot.com/t/stuck-migration-for-legacy-crm-card-to-new-app-card/154846 "2026-08-10T22:20:24Z")

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We successfully migrated Legacy CRM Card 563343 to an App Card. Afterwards, we changed the App Card uid and redeployed the pr…

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## [Installation app failure](https://community.hubspot.com/t/installation-app-failure/155107)

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**Author:** [@MarcelHollaar](https://community.hubspot.com/u/MarcelHollaar)\
**Replies:** 4\
**Last updated:** [August 5, 2026, 10:43am UTC](https://community.hubspot.com/t/installation-app-failure/155107 "2026-08-05T10:43:39Z")

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My public OAuth app is already set to "distribution": "marketplace" in app-hsmeta.json, with read-only CRM scopes (contacts, …

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## [Production company synchronization – guidance on Batch APIs, rate limits, and caching](https://community.hubspot.com/t/production-company-synchronization-guidance-on-batch-apis-rate-limits-and-caching/155085)

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**Author:** [@VGupta39](https://community.hubspot.com/u/VGupta39)\
**Replies:** 3\
**Last updated:** [August 6, 2026, 6:00pm UTC](https://community.hubspot.com/t/production-company-synchronization-guidance-on-batch-apis-rate-limits-and-caching/155085 "2026-08-06T18:00:58Z")

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Production company synchronization – guidance on Batch APIs, rate limits, and caching Hello HubSpot Support Team, We are pre…

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## [Stripe Hubspot Deal Creation](https://community.hubspot.com/t/stripe-hubspot-deal-creation/43286)

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**Author:** [@dmattauch](https://community.hubspot.com/u/dmattauch)\
**Replies:** 9\
**Last updated:** [August 10, 2026, 6:24pm UTC](https://community.hubspot.com/t/stripe-hubspot-deal-creation/43286 "2026-08-10T18:24:27Z")

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Hi, I’ve done an integration through zapier that when a payment is made, a deal is created an moved to closed won and associ…

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## [Churn Prevention with ChurnScope](https://community.hubspot.com/t/churn-prevention-mit-churnscope/155587)

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**Author:** [@PepDev](https://community.hubspot.com/u/PepDev)\
**Replies:** 2\
**Last updated:** [August 10, 2026, 2:29pm UTC](https://community.hubspot.com/t/churn-prevention-mit-churnscope/155587 "2026-08-10T14:29:57Z")

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Hello HubSpot users, As a developer at Pepdev, I know the problem faced by many freelancers and small B2B providers: You notice…

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## [Need suggestions for improving Mobile LCP & TBT in HubSpot SEO Recommendations](https://community.hubspot.com/t/need-suggestions-for-improving-mobile-lcp-tbt-in-hubspot-seo-recommendations/155395)

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**Author:** [@arjunkhankriyal](https://community.hubspot.com/u/arjunkhankriyal)\
**Replies:** 4\
**Last updated:** [August 10, 2026, 10:52am UTC](https://community.hubspot.com/t/need-suggestions-for-improving-mobile-lcp-tbt-in-hubspot-seo-recommendations/155395 "2026-08-10T10:52:06Z")

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Hi HubSpot Community, I’m currently working on improving a website based on HubSpot SEO Recommendations. At this point, the…

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## [App Events build fails for objectType "APP\_OBJECT" despite being documented as valid](https://community.hubspot.com/t/app-events-build-fails-for-objecttype-app-object-despite-being-documented-as-valid/155376)

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**Author:** [@Ranjeet](https://community.hubspot.com/u/Ranjeet)\
**Replies:** 1\
**Last updated:** [August 10, 2026, 7:21am UTC](https://community.hubspot.com/t/app-events-build-fails-for-objecttype-app-object-despite-being-documented-as-valid/155376 "2026-08-10T07:21:53Z")

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Has anyone else run into this? I’m trying to create an app event type targeting an App Object, but the build fails even thou…

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## [Hubspot.fetch timeout not working when set to a value greater than 30000 (ms)](https://community.hubspot.com/t/hubspot-fetch-timeout-not-working-when-set-to-a-value-greater-than-30000-ms/155611)

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**Author:** [@Nignucial](https://community.hubspot.com/u/Nignucial)\
**Replies:** 1\
**Last updated:** [August 10, 2026, 3:37am UTC](https://community.hubspot.com/t/hubspot-fetch-timeout-not-working-when-set-to-a-value-greater-than-30000-ms/155611 "2026-08-10T03:37:59Z")

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While the docs says the maximum value for timeout of hubspot.fetch can be set to 120000 (2 minutes), hubspot.fetch still time…

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## [Form not responsive on mobile](https://community.hubspot.com/t/form-not-responsive-on-mobile/155531)

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**Author:** [@elento](https://community.hubspot.com/u/elento)\
**Replies:** 2\
**Last updated:** [August 9, 2026, 4:51pm UTC](https://community.hubspot.com/t/form-not-responsive-on-mobile/155531 "2026-08-09T16:51:42Z")

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Hello. My form on Rådgivning om ladeinfrastruktur | Elento is not looking good on mobile view. I have tried looking for the C…

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## [PUT to Workflows v4 API silently clears a workflow's re-enrollment trigger settings](https://community.hubspot.com/t/put-to-workflows-v4-api-silently-clears-a-workflows-re-enrollment-trigger-settings/154078)

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**Author:** [@deepdetect](https://community.hubspot.com/u/deepdetect)\
**Replies:** 9\
**Last updated:** [August 7, 2026, 9:53pm UTC](https://community.hubspot.com/t/put-to-workflows-v4-api-silently-clears-a-workflows-re-enrollment-trigger-settings/154078 "2026-08-07T21:53:11Z")

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Has anyone run into this? We want to do a bulk migration across ~200 workflows (updating a “set property” action from Replac…

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## [Building custom Agent Tools for Breeze: what the architecture actually looks like and where it break](https://community.hubspot.com/t/building-custom-agent-tools-for-breeze-what-the-architecture-actually-looks-like-and-where-it-break/155506)

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**Author:** [@SamuelOliver](https://community.hubspot.com/u/SamuelOliver)\
**Replies:** 9\
**Last updated:** [August 7, 2026, 8:36pm UTC](https://community.hubspot.com/t/building-custom-agent-tools-for-breeze-what-the-architecture-actually-looks-like-and-where-it-break/155506 "2026-08-07T20:36:16Z")

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After spending some time working with the Agent Tools reference and creating some Agent Tools myself for Breeze agents, I fel…

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## [@hubspot/cms-dev-server infinite with islands](https://community.hubspot.com/t/hubspot-cms-dev-server-infinite-with-islands/151155)

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**Author:** [@John](https://community.hubspot.com/u/John)\
**Replies:** 2\
**Last updated:** [August 7, 2026, 7:09pm UTC](https://community.hubspot.com/t/hubspot-cms-dev-server-infinite-with-islands/151155 "2026-08-07T19:09:57Z")

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I think I found a bug in @hubspot/cms-dev-server when using CMS React islands through the HubSpot sprocket “Local dev server” URL. What I noticed: Pages without islands are stable. Pages with React islands can repeate…

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## [Tasks to Microsoft To Do](https://community.hubspot.com/t/tasks-to-microsoft-to-do/59755)

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**Author:** [@CMR311](https://community.hubspot.com/u/CMR311)\
**Replies:** 15\
**Last updated:** [August 7, 2026, 6:10pm UTC](https://community.hubspot.com/t/tasks-to-microsoft-to-do/59755 "2026-08-07T18:10:40Z")

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Has anyone created a Zap (Zapier) to sync Hubspot tasks with Microsoft To Do? If not, does anyone have ideas on how to best m…

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## [App development & Integration](https://community.hubspot.com/t/app-development-integration/130451)

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**Author:** [@Suheb](https://community.hubspot.com/u/Suheb)\
**Replies:** 5\
**Last updated:** [August 19, 2026, 12:13pm UTC](https://community.hubspot.com/t/app-development-integration/130451 "2026-08-19T12:13:07Z")

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Hi everyone, I’m starting a new project and need guidance on HubSpot app development. What’s the recommended way to structure…

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## [Custom Channels API Is Now Live](https://community.hubspot.com/t/custom-channels-api-is-now-live/129694)

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**Author:** [@hseligson](https://community.hubspot.com/u/hseligson)\
**Replies:** 8\
**Last updated:** [August 7, 2026, 10:42am UTC](https://community.hubspot.com/t/custom-channels-api-is-now-live/129694 "2026-08-07T10:42:17Z")

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We are excited to announce important updates to the Custom Channels API to enhance flexibility, functionality, and integratio…

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## [Member passes and QR check-in for HubSpot — looking for early users](https://community.hubspot.com/t/member-passes-and-qr-check-in-for-hubspot-looking-for-early-users/155422)

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**Author:** [@PeterXiao](https://community.hubspot.com/u/PeterXiao)\
**Replies:** 3\
**Last updated:** [August 7, 2026, 9:31am UTC](https://community.hubspot.com/t/member-passes-and-qr-check-in-for-hubspot-looking-for-early-users/155422 "2026-08-07T09:31:00Z")

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If your team runs memberships, recurring visits, classes, or in-person events in HubSpot, how are you handling check-in at t…

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## [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)

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**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")

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Hi everyone, I'm seeing what appears to be unexpected behavior with optional OAuth scopes for a Public App. ## Our setup -…

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## [Updated recommendations for storing OAuth access tokens](https://community.hubspot.com/t/updated-recommendations-for-storing-oauth-access-tokens/96212)

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**Author:** [@Dadams](https://community.hubspot.com/u/Dadams)\
**Replies:** 3\
**Last updated:** [August 7, 2026, 6:31am UTC](https://community.hubspot.com/t/updated-recommendations-for-storing-oauth-access-tokens/96212 "2026-08-07T06:31:56Z")

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We’re updating our recommendation for storing access tokens to allow tokens to be at least 512 characters in length. Why is …

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## [Unsubscribe from specific subscription type](https://community.hubspot.com/t/unsubscribe-from-specific-subscription-type/80656)

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**Author:** [@CHutt5](https://community.hubspot.com/u/CHutt5)\
**Replies:** 7\
**Last updated:** [August 7, 2026, 3:53am UTC](https://community.hubspot.com/t/unsubscribe-from-specific-subscription-type/80656 "2026-08-07T03:53:03Z")

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Hi, I’m looking to see a way to allow users to unsubscribe to emails from specific email subscrition types. Currently we ha…

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## [We’re looking for guidance on the supported migration path for a production public OAuth app so we d](https://community.hubspot.com/t/we-re-looking-for-guidance-on-the-supported-migration-path-for-a-production-public-oauth-app-so-we-d/155393)

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**Author:** [@oppsync-admin](https://community.hubspot.com/u/oppsync-admin)\
**Replies:** 0\
**Last updated:** [August 6, 2026, 11:53am UTC](https://community.hubspot.com/t/we-re-looking-for-guidance-on-the-supported-migration-path-for-a-production-public-oauth-app-so-we-d/155393 "2026-08-06T11:53:06Z")

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Context We have two public apps (OAuth, Marketplace distribution): App Role Status Labra QA Internal / QA only Mig…

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## [Dynamic webhook subscriptions no longer possible after migrating from a legacy app](https://community.hubspot.com/t/dynamic-webhook-subscriptions-no-longer-possible-after-migrating-from-a-legacy-app/153813)

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**Author:** [@mmaddiona](https://community.hubspot.com/u/mmaddiona)\
**Replies:** 14\
**Last updated:** [August 6, 2026, 6:22am UTC](https://community.hubspot.com/t/dynamic-webhook-subscriptions-no-longer-possible-after-migrating-from-a-legacy-app/153813 "2026-08-06T06:22:28Z")

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Hi HubSpot team, We have identified a significant limitation after migrating our legacy public app to the new project-based …

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## [Does HubSpot provide the supports to add a TXT file to the root directory of a client’s website?](https://community.hubspot.com/t/does-hubspot-provide-the-supports-to-add-a-txt-file-to-the-root-directory-of-a-client-s-website/155293)

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**Author:** [@SIrwin6](https://community.hubspot.com/u/SIrwin6)\
**Replies:** 4\
**Last updated:** [August 6, 2026, 2:59am UTC](https://community.hubspot.com/t/does-hubspot-provide-the-supports-to-add-a-txt-file-to-the-root-directory-of-a-client-s-website/155293 "2026-08-06T02:59:38Z")

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We are developing a HubSpot app and would like to add a TXT file to the root directory of a client’s website so that it is pu…

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## [WhatsApp report filtered by user](https://community.hubspot.com/t/relatorio-de-whatsapp-filtrado-por-usuario/155350)

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**Author:** [@LeonardoGrattao](https://community.hubspot.com/u/LeonardoGrattao)\
**Replies:** 3\
**Last updated:** [August 5, 2026, 8:59pm UTC](https://community.hubspot.com/t/relatorio-de-whatsapp-filtrado-por-usuario/155350 "2026-08-05T20:59:20Z")

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Hi, I’m trying to get a WhatsApp report, similar to the one available when we open the WhatsApp message template, because…

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## [Tendal: workflows that report success but reach nobody, and seats nobody uses. Testers wanted](https://community.hubspot.com/t/tendal-workflows-that-report-success-but-reach-nobody-and-seats-nobody-uses-testers-wanted/155336)

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**Author:** [@birdman](https://community.hubspot.com/u/birdman)\
**Replies:** 0\
**Last updated:** [August 5, 2026, 4:12pm UTC](https://community.hubspot.com/t/tendal-workflows-that-report-success-but-reach-nobody-and-seats-nobody-uses-testers-wanted/155336 "2026-08-05T16:12:51Z")

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Disclosure first: I built this, so I’m the vendor here. Posting on this board because it’s where the guidelines point standal…

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