Property validation failures
Unexpected phone, email, or custom-property formats can reject the exact lead the workflow was built to capture.
HubSpot lead delivery
Verify that every automated lead becomes the right HubSpot record.
Normalize contact fields, control retries, prevent replay duplicates, and attach delivery evidence to HubSpot lead handoffs.
A successful automation run is not proof of delivery.
HubSpot integrations can fail before or after the API request reaches the platform. Invalid properties, throttling, duplicate rules, and multi-step association logic make an accepted request different from a verified business outcome.
Form, ad, or AI agent → LeadProof → HubSpot contact and workflowThrottle-sensitive delivery
Short bursts can trigger temporary limits that require controlled retries instead of silent abandonment.
Contact versus outcome
Creating a contact is not always the same as creating the intended lifecycle stage, owner assignment, or follow-up action.
Implementation
Put LeadProof in the delivery path.
Keep the tools that create and process the lead. Standardize only the fragile handoff between them.
Open sandbox instructions →- Send the source lead to LeadProof before the HubSpot write step.
- Use the source lead or conversation ID as the Idempotency-Key.
- Point LeadProof at the HubSpot integration endpoint responsible for the final write.
- Record the returned receipt alongside the HubSpot object ID when available.
POST
https://leadproof.jessesay.chatgpt.site/api/v1/leadsAuthorization: Bearer lp_live_your_key
Idempotency-Key: stable-source-lead-id
Content-Type: application/json
{
"destination": "https://your-crm.example/webhook",
"name": "Alex Morgan",
"email": "alex@example.com",
"source": "hubspot"
}Questions
What teams ask before adding LeadProof.
Does LeadProof need my HubSpot login?
No. LeadProof delivers to the HTTPS integration endpoint you control; it does not ask for a HubSpot password.
Can it stop duplicate contacts?
A stable idempotency key prevents the same source event from being processed as a new delivery during retries or replays.
Does LeadProof store the contact payload?
LeadProof stores operational metadata and a payload fingerprint rather than the complete production payload by design.
See the gaps in your real workflow.
Get an explainable risk score, prioritized fixes, and the right LeadProof plan.