Developer Support

APIs & Integrations Ask questions and find answers about HubSpot’s APIs. CMS Development All things CMS Development. Ask questions. Give advice. Come join the Developer Community! Developer Announcements A place to read about Developer focused product releases, changes and events

Topic	Replies	Views	Activity
About the Developer Support category Developer Support	0	154	June 12, 2026
Blocked legacy app migration - UNLISTED_APP_OVER_PRIVATE_INSTALL_LIMIT APIs & Integrations app-marketplace	6	55	July 30, 2026
How to make `hs project dev` use a different port aside from 8080 APIs & Integrations developer-tools	4	322	July 29, 2026
Hubspot's new form builder showing Previous and Next buttons stacked on mobile APIs & Integrations forms	3	886	July 29, 2026
New quotes showing wrong amount of marketing contacts Developer Support contacts	2	22	July 29, 2026
Problem getting task info from Salesforce APIs & Integrations professional	5	730	July 29, 2026
PUT to Workflows v4 API silently clears a workflow's re-enrollment trigger settings APIs & Integrations enterprise , contacts	5	70	July 29, 2026
Settings for in-contact email reply Developer Support email	0	11	July 29, 2026
Line Items batch endpoint merging instances APIs & Integrations professional , object , sdk , developer-tools	5	942	July 29, 2026
Optimising HubSpot CMS Content for Generative Search (GEO) CMS Development professional	2	15	July 29, 2026
Catalog api response change -object entry removed "name": "Objects" and "group": "CRM" Developer Support enterprise	9	72	July 29, 2026
Developer project deploys timing out after last successful build — docs-only change Developer Support developer	3	33	July 29, 2026
Couldn't migrate our public app to project app due to UNLISTED_APP_OVER_PRIVATE_INSTALL_LIMIT APIs & Integrations developer-tools	1	11	July 29, 2026
Node API: Create Custom Objects with Associations is not saving Associations APIs & Integrations developer-tools	7	1785	July 29, 2026
Integration OAuth fails - cannot find and accept acceptable use policy Developer Support oauth , free	3	27	July 29, 2026
App Card not Appearing in View Customization Section Developer Support app-marketplace , companies	8	51	July 28, 2026
Need api for fetching user seats APIs & Integrations free	2	30	July 28, 2026
New Global Configuration Developer Announcements announcement	2	2423	July 28, 2026
Custom field formatting for HubSpot Scheduler APIs & Integrations calendar	2	18	July 28, 2026
Custom Validation Before Submit Developer Support cms-development-tools	4	37	July 28, 2026
What’s the best way to structure a CMS for managing game versions, patch notes, and APK downloads? CMS Development free	11	3603	July 28, 2026
How can I add a scroll-down effect to long forms in HubSpot? CMS Development enterprise	8	37	July 28, 2026
Feature Image Not Used in Gmail Chat Link Preview CMS Development website-pages	4	37	July 28, 2026
How can I lazy load a modal form for better page performance in HubSpot? CMS Development hubspot-academy , format-data-actions	3	38	July 28, 2026
Is there an API to add custom code to the section of all HubSpot pages? APIs & Integrations marketing	2	31	July 28, 2026
Custom Domain Connected in HubSpot but blog.lumiid.com Returns Connection Refused on HTTP/HTTPS CMS Development troubleshooting	5	28	July 27, 2026
Why are HubSpot API contact updates dDelayed or missing in HubSpot? APIs & Integrations free	3	52	July 27, 2026
Looking for 3 HubSpot users to beta test a native WhatsApp Business API integration APIs & Integrations third-party-apps , professional	3	52	July 27, 2026
Custom css in hubspot form CMS Development free	3	2201	May 13, 2024
New Dev Accounts Blocked by Legacy Timeline API Restraints & Date-Based Versioning Gap APIs & Integrations timeline-and-extensions-apis	6	91	July 27, 2026