@KKauper
According to HubSpot documentation :
HubSpot doesn’t give you a way to customize that timeout, which makes local/proxy setups kinda fragile.
One thing you can try is making sure your endpoint responds fast — like even if the full logic takes longer, you can return a quick skeleton response and then update the card later using the CRM card’s external data refresh endpoint. Not ideal, I know, but it helps during dev.
Also, if you’re using a dev proxy (like ngrok or something similar), make sure it’s not occasionally throttling or adding extra handshake time.
Hope that helps.
Real-Time Data Sync Between any CRM or Database | Founder @Stacksync (YC W24)