Hi There, I’m deploying a custom UI Extension in HubSpot that includes serverless functions. Locally, everything works fine,…

Hi @MAsghari , The issue likely stems from how HubSpot handles paths in the serverless environment after deployment. In a ser…

Hi, Thanks for your response, I Already tried all of them, none of them will work!

Hi There! Any feedback/solution for this?

Hi @kennedyp Can you please check this question and send it to one your specialist to check! I’d appreciate if @zach_thread…

Thanks for the tag, @MAsghari ! I want to invite some subject matter experts to see if they have any suggestions. Hey @danmoy…

Hi @kennedyp Can you please check if anyone has an answer for this? I keep receiving this error for multiple projects and ha…

Sorry to bother, I know it has been a while but I am chasing this issue myself. Did you find a solution?

Hi @craigjacksonids , Thank you for posting to the Community! It doesn’t look like we’ve found a solution to this yet; howev…

Hi, Thanks for your response. It is 2025.1 but I eventually found a hubspot article saying the local includes are not supp…

HubSpot UI Extension | Serverless Function Fails to Find Local Module After Deployment in HubSpot UI

LauraMarie October 20, 2025, 5:57pm 10

What platform version are you using? Remember that version 2025.2 does NOT handle serverless functions. Make sure you’re using 2025.1

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