We are seeing a persistent server-side deployment failure in HubSpot Projects across two independent apps in the same developer account. Both source-complete builds validate locally, and every component except the WEBHOOKS component deploys successfully.
Latest failures
Project A: build #15, deploy #22; correlation ID 019f6e12-e62d-71c5-8d43-d3229f72eb0e. The deployed build remains #11.
Project B: build #14, deploy #23; correlation ID 019f6e13-1b6a-7419-9877-cc6b840feed4. The deployed build remains #12.
Exact CLI error
A backend service was temporarily unavailable while deploying WEBHOOKS kiingo_crm_object_webhooks. This is usually transient — please re-run your deploy. If it persists, contact support with correlation-id: …
What we have confirmed
App metadata deploys successfully.
The workflow action kiingo_record_workflow_execution deploys successfully.
Only WEBHOOKS kiingo_crm_object_webhooks fails.
Multiple retries separated by cooldown periods continue to fail on both projects.
Our remote verifier confirms there was no partial webhook activation.
The public HubSpot status page reports Developer Tools and APIs operational.
Previous correlation IDs showing the same persistent failure include:
019f6d4c-743d-776c-a827-c4c9fcf2dd71
019f6d4c-e55c-7b43-b13e-f763b26bf993
019f6d15-3e69-7b20-af8d-c53a1688a41b
019f6d15-86b5-7364-b210-6a748630f7d3
Could the HubSpot Projects/Webhooks engineering team inspect these correlation IDs, repair or reset any stuck backend component state, and confirm when the source-complete builds should be safe to deploy? I can provide developer-account, project, and app IDs privately; I have omitted them here because this forum is public.
Last successful build/deploy IDs for each project.
Full failing deploy IDs plus correlation IDs.
Whether subscription count is over 200, targetUrl changed, or a previous webhook deploy partially succeeded.
A minimal deploy where only one subscription is changed or removed.
A screenshot/log showing the deployed build remains #11/#12 after the failed deploy.
I would not keep retrying source-complete deploys until HubSpot confirms the component state is clear. If a minimal webhook-only change also fails with a fresh correlation ID, that is strong evidence for backend state rather than project source.
Local CLI validation passes, HubSpot remote Build #1 succeeds, the project is marked DEPLOYABLE, and both the APPLICATION and WEBHOOKS subbuilds report SUCCESS.
Every actual deployment then fails only while processing:
WEBHOOKS innoway_hubspot_revenue_sync_webhooks
with:
A backend service was temporarily unavailable while deploying WEBHOOKS...
Regarding the diagnostic questions previously raised in this thread:
Previous successful webhook deployment: none for this project
Partial deployment: APPLICATION processing succeeds, but WEBHOOKS fails and no complete build becomes deployed
The failure persists across multiple attempts and multiple correlation IDs:
01a10430-cbc3-7181-8ef8-8b42cf80f353
01a10431-581a-7d23-9e82-c7983129973d
01a1069c-917a-7100-a287-f13e7f4b8a00
01a107bb-d6ff-7e5d-8344-7e6954c2b6f2
01a107c0-0e84-7115-b085-64ff023797c2
Since this appears to reproduce the same failure several months later on Developer Platform 2026.09, could the HubSpot Developer/Projects team please inspect these correlation IDs and confirm whether the WEBHOOKS deployment component needs an account/project-side reset or whether there is an active platform issue?
We have stopped further retries because both local and HubSpot remote validation already succeed.