How to integrate Unify with SendGrid

To integrate Unify with SendGrid, configure a Unify Play Webhook action to call the documented API with PUT, the required credentials, and the destination-specific JSON body. Use this connection to upsert selected contacts into SendGrid Marketing.[1][2][3]

By UnifyDocumentation reviewed September 15, 2026

Explore scenarios Technical setup Open Unify

Connection: Via API; Customer engagement
Tool: SendGrid; SendGrid
Data flow: Unify → SendGrid; JSON payload

At a glance

Via API: SendGrid receives the handoff
PUT request with an explicit JSON contract and destination authentication
Test scenario: Check an invalid custom field

When this workflow makes sense

Start with the decision your team needs to make, then choose the connection that supports it.

Asynchronous imports create a gap between intake and usability. Give operations a way to see that gap and resolve failed records. A small first batch helps verify field definitions before a large Play produces many queued updates.

A good fit when

Teams that want to upsert selected contacts into SendGrid Marketing and have an owner for the receiving process. The destination account must permit the documented request and the chosen downstream action.

Reconsider the plan when

The receiving team has not agreed how this SendGrid operation should behave when the same record arrives again. Resolve the matching rule before enabling retries.

Design the handoff

Use this framework to agree on the input, the next action, and who owns the result.

Suggested workflow design, based on the documented capabilities below.

Stage	Decision to make
Business decision	Upsert selected contacts into SendGrid Marketing
Receiving contract	Agree which of the 3 example data fields the receiving process actually needs. Set missing-value and identity rules in the field mapping below.
Execution boundary	Give one owner access to inspect the SendGrid request and its resulting action.
Completion	Decide who can confirm the SendGrid outcome and recover a failed or repeated handoff. Use the completion check below as the acceptance criterion.

Explore the scenarios

Choose the situation that fits your team and work through the proposed plan.

Open a scenario to explore its plan. Checklists track your selections in this page only.

Upsert selected contacts into SendGrid Marketing

Start with one controlled record and one intended SendGrid outcome. Keep the test destination separate from live operations.

The decision that matters

The receiving owner must distinguish accepted input from completed work. Agree on the evidence required before treating this handoff as successful.

Prepare the destination using the SendGrid setup checklist
Resolve the sample fields for one known record and inspect the request before sending it
Trace that handoff through the receiving operation and compare the actual destination values with the source

Your validation checklistThe SendGrid destination and record identity are correctThe required fields match the controlled recordThe completion evidence is saved and the next action has an owner

0 of 3 checks marked by you

Check an invalid custom field

Check an invalid custom field: submit a controlled test with a mismatched field definition and inspect the import outcome. Keep failed records visible for correction rather than retrying the entire audience.

The decision that matters

Decide whether this case should be held for review, corrected, or retried. Make that decision before running SendGrid against live records.

Isolate the test in a controlled destination and record the starting state
Run the edge case described above and capture the actual response and destination state
Recover the record once, then check that recovery did not create unintended additional work

Your validation checklistThe intended edge case has an observable resultRecovery does not create unintended additional workThe SendGrid owner has a documented recovery decision

0 of 3 checks marked by you

Illustrative workflow, not a preconfigured automation. Complete these checks in your own account.

Define success before launch

Inspect the data and the intended outcome separately. Connection status is only the first check.

Expected, not tested

Upsert selected contacts into SendGrid Marketing

Check the import job status or retrieve the contact by identifier, then compare its final fields in SendGrid.

Documentation-based reference. This workflow has not been tested end to end. Use a record or event you control before enabling live activity.

Questions answered

Common decisions when connecting Unify and SendGrid.

Does HTTP 202 confirm the contact was saved?

No. SendGrid processes contact upserts asynchronously. Check the job or resulting contact to establish completion.[3]

Limits & decisions

Check these boundaries before designing a live workflow around the connection.

HTTP 202 means contacts were queued, not that the import succeeded. Do not mark a campaign-ready state from that response alone.[3]
API and trigger access depend on the destination account, permissions, and configuration. This request pattern is not a claim of native Unify sync.[3]

What the connection supports

Understand the connection, the data involved, and the behavior that matters for a Unify + SendGrid workflow.

Connection flowVia API

Unify

SendGrid

Prospect data

PUT / JSON

Documented behavior at a glance
Decision	What to know
Unify action	Outbound HTTP request with configurable method, authentication, headers, and body[1]
Receiving operation	Create the destination custom fields before referencing them in a payload. Start with the standard name and email fields.[3]
Response handling	Webhook response bodies are not available as inputs to later Unify Play actions[2]

Technical setup reference

References and requirements for the SendGrid connection.

Unify reference: Webhook action SendGrid reference: official connection reference

Connection requirements and setup checklist

Before connecting

A Unify Play with a Webhook action and a controlled record for testing
Access to the intended SendGrid environment and the permissions required by the cited API or trigger
The destination identifiers, credentials, and schema used by the request below
An agreed record identity, duplicate policy, and owner for failed handoffs

Prepare the SendGrid destination
Create the destination custom fields before referencing them in a payload. Start with the standard name and email fields.[3]
Configure the destination action
Send a PUT with a contacts array. Treat the returned job_id and HTTP 202 as queued processing and inspect the import result before downstream use.[3]
Configure the Unify request
Use PUT, the endpoint and authentication below, and JSON body format in the Webhook action. Replace setup placeholders, then inspect Expand preview with a controlled record. The receiver must respond within 8 seconds; webhook response bodies are not exposed to later Play steps.[1][2]
Validate the complete handoff
Run the success and edge-case scenarios in Explore the scenarios with a controlled record. Save the request identity and destination evidence, then apply the completion check before enabling live traffic.[3]

Request configuration

Method: PUT
URL pattern: https://api.sendgrid.com/v3/marketing/contacts
Headers: Content-Type: application/json
Authorization: Bearer YOUR_SENDGRID_API_KEY
Authentication: Use a SendGrid API key with the relevant Marketing permissions as a Bearer token. Confirm the correct regional API host.

Choose JSON as the body format. Unify sets Content-Type automatically. The receiver must respond within Unify’s 8-second timeout; request responses are not passed to later Play steps.[2]

Replace URL placeholders with the actual receiver URL from your account or deployed application. These example URLs are not working endpoints.

Example handoff payload

Start with a fictional prospect. Validate the resolved values before using a real record.

Inspect the sample payload and field mapping

Example request body

{
  "contacts": [
    {
      "email": "alex@example.com",
      "first_name": "Alex",
      "last_name": "Morgan"
    }
  ]
}

Fictional data. Replace sample values before using a real Play.

Illustrative JSON for the documented receiving operation. All prospect values are fictional. Replace credentials, identifiers, schema-specific fields, and fixed example values before a controlled test. Use the field mapping to distinguish record data from fixed settings. Select available fields in your Play and inspect Expand preview; do not replace configuration values with prospect data.[1][2][3]

Payload field	Value to send
`contacts.0.email`	string / dynamic / EmailSelect the available email field for the controlled person or company record in Unify. Keep the receiving field a string. If missing: Skip or hold the handoff if this value is required by the destination; omit it only when the destination contract permits omission. Do not send a guessed value.
`contacts.0.first_name`	string / dynamic / First nameSelect the available first name field for the controlled person or company record in Unify. Keep the receiving field a string. If missing: Skip or hold the handoff if this value is required by the destination; omit it only when the destination contract permits omission. Do not send a guessed value.
`contacts.0.last_name`	string / dynamic / Last nameSelect the available last name field for the controlled person or company record in Unify. Keep the receiving field a string. If missing: Skip or hold the handoff if this value is required by the destination; omit it only when the destination contract permits omission. Do not send a guessed value.

contacts is an array even for one person. Custom fields use their configured identifiers; provide existing identifiers consistently when updating a contact.

Troubleshooting

Start with the stage where the expected data or action stops appearing.

The request is rejected

Use a SendGrid API key with the relevant Marketing permissions as a Bearer token. Confirm the correct regional API host. Check the receiving account, permissions, endpoint, and required fields against the cited documentation.[3]

The values or destination are wrong

Compare the resolved JSON with the field-by-field contract in Example handoff payload. Check identifiers against the selected SendGrid environment, and distinguish an absent source value from an intentional static value. Fix the mapping before repeating the write.[3]

Receipt does not match the expected result

Find the request in the receiving logs, then inspect the actual SendGrid resource or execution. If the request was accepted but no result exists, investigate the destination failure before retrying. Keep the same logical handoff identity when recovering a repeat.[3]

Sources & review

Official documentation reviewed on September 15, 2026.

Technical claims link to primary documentation from Unify and the destination tool. Scenarios, field choices, and recovery plans are editorial implementation examples. Documentation review is separate from execution testing.

Documentation reviewed; end-to-end execution not tested. No named technical reviewer has signed off on these articles yet.

Content updated: 2026-09-16. Report a correction to Unify with the tool name, source URL, and behavior you observed.

How to integrate Unify with SendGrid