UI extensions from integrations are not loading

What to do

• Check whether you use HubSpot CRM, Sales Tools, Integrations. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 34m it lasted.

  Anything that failed between 2026-01-20 17:43 UTC and 2026-01-20 18:17 UTC may need a replay.

• Subscribe to HubSpot's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=hubspot works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from HubSpot 2

1. investigatingJan 20, 2026, 5:43 PM UTC

   We are investigating an issue impacting integration UI extensions. We will provide an update when we have more information. The information on this page reflects our understanding of the incident and impact at the time of the update.

   provider

2. resolvedJan 20, 2026, 6:17 PM UTC

   Between 11:47 AM (UTC -05:00) and 01:05 PM (UTC -05:00), customers in all regions experienced issues loading app cards and UI extensions in HubSpot. This was caused by a load balancer misconfiguration. As of 01:05 PM (UTC -05:00), our app cards and UI extensions are working properly and the incident has been fully resolved. No data was lost. HubSpot conducts a thorough review after each incident to understand the cause and prevent it from happening again. Learn more about HubSpot's commitment to reliability at www.HubSpot.com/reliability. The information on this page reflects our understanding of the incident and impact at the time of the update.

   provider

Corrections

None so far.

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