Estimate Webhooks — Payload Reference

Grow CRM fires five distinct event keys for estimate records: estimate.created, estimate.updated, estimate.deleted, estimate.sundry, and estimate.activity. Use these events to automate approval workflows, sync billing data to external accounting systems, and react to client acceptance or decline in real time.

The webhook envelope structure, delivery semantics, retry behaviour, and signature verification conventions are documented in Introduction and Verification. Those rules apply to every event on this page and are not repeated here.

The estimate object

Every event key except estimate.deleted carries the full estimate object. For estimate.created it appears flat directly inside data; for estimate.updated and estimate.sundry it is nested under data.estimate.

{
  "id": 118,
  "status": "draft",
  "client": { "id": 12, "name": "Acme Inc" },
  "project_id": null,
  "category": { "id": 4, "name": "Default" },
  "dates": {
    "date": "2026-07-16",
    "expiry_date": "2026-08-15",
    "created": "2026-07-16T08:00:00.000000Z"
  },
  "notes": null,
  "tax_type": "summary",
  "totals": {
    "subtotal": "250.00",
    "discount_type": "amount",
    "discount_amount": "25.00",
    "tax_total_amount": "22.50",
    "final_amount": "247.50"
  },
  "line_items": [
    {
      "id": 1,
      "description": "Item A",
      "unit": "hours",
      "quantity": "2.00",
      "rate": "100.00",
      "total": "200.00",
      "type": "plain",
      "tax_status": "taxable",
      "discount": { "type": "none", "value": "0.00", "amount": "0.00" }
    }
  ],
  "taxes": [ { "name": "VAT", "rate": "10.00" } ],
  "tags": ["priority"]
}

integer

The estimate’s numeric primary key.

string

One of draft, new, accepted, revised, declined, or expired — the raw status value. Unlike invoices and tickets, there is no { title, color } wrapper object around this value.

object

{ id, name } — the client this estimate belongs to.

integer | null

Set when the estimate is attached to a project; otherwise null.

object

{ id, name } — the estimate category.

object

date and expiry_date are date-only strings; created is an ISO 8601 timestamp with microseconds.

string | null

Free-text notes on the estimate; null when not set.

string

One of summary, inline, or none.

object

subtotal, discount_type (amount, percentage, or none), discount_amount, tax_total_amount, and final_amount — all decimals expressed as strings.

array

Array of line item objects. See the line item shape below.

array

[{ name, rate }] — applied tax rates.

array of strings

Tag titles attached to the estimate.

The line item shape

Show Line item field reference

Field	Type	Notes
`id`	integer	The line item’s numeric primary key.
`description`	string	Line item description text.
`unit`	string \| null	Unit label (e.g. `hours`).
`quantity`	string	Decimal as string.
`rate`	string	Decimal as string.
`total`	string	Decimal as string.
`type`	string	`plain`, `time`, or `dimensions`.
`tax_status`	string	`taxable` or `exempt`.
`discount`	object	`{ type, value, amount }` — `type` is `none`, `fixed`, or `percentage`.

`estimate.created`

Grow CRM fires estimate.created immediately after a new estimate is saved, including when an estimate is cloned. data is the full estimate object shown above.

{
  "event": "estimate.created",
  "id": 118,
  "created": "2026-07-16T08:00:00+00:00",
  "data": { "id": 118, "status": "draft", "client": { "id": 12, "name": "Acme Inc" }, "...": "..." }
}

`estimate.updated`

Grow CRM fires estimate.updated whenever a significant field or lifecycle state on the estimate changes. Inspect data.change to determine what changed; data.estimate always carries the complete, up-to-date estimate object.

`data.change`	Fires when
`edited`	The main estimate edit form is saved.
`status`	The estimate’s status changes.
`accepted`	The client accepts the estimate.
`declined`	The client declines the estimate.
`published`	The estimate is published.
`sent`	The estimate email is sent or resent.
`converted`	The estimate is converted to an invoice. `data.estimate` still describes the estimate — listen on invoice webhooks for the resulting new invoice.
`tax_type`	The tax type (summary, inline, or none) is changed.
`automation`	The estimate’s automation settings are updated.
`project`	The estimate is attached to or detached from a project.

{
  "event": "estimate.updated",
  "id": 118,
  "created": "2026-07-16T08:05:00+00:00",
  "data": {
    "change": "accepted",
    "estimate": { "id": 118, "status": "accepted", "...": "..." }
  }
}

`estimate.sundry`

Grow CRM fires estimate.sundry for minor field edits that don’t warrant a full estimate.updated signal. Inspect data.field to identify which field changed; data.estimate carries the full estimate object — it is not a partial diff.

`data.field`	Fires when
`category`	The estimate’s category is changed.

{
  "event": "estimate.sundry",
  "id": 118,
  "created": "2026-07-16T08:07:00+00:00",
  "data": {
    "field": "category",
    "estimate": { "id": 118, "category": { "id": 4, "name": "Default" }, "...": "..." }
  }
}

`estimate.activity`

Grow CRM fires estimate.activity whenever an attachment on the estimate is added or removed. Estimates have no comments or logs, so this event only ever carries type: "attachment".

The estimate attachment shape does not include a created timestamp.

`data.type`	`data.action`	`data.item` shape
`attachment`	`added`	`{ id, uniqueid, filename }` — no `created` field on this shape.
`attachment`	`deleted`	`{ id, uniqueid, filename }` — the file record is looked up before removal, so the full shape is available on delete.

{
  "event": "estimate.activity",
  "id": 118,
  "created": "2026-07-16T08:10:00+00:00",
  "data": {
    "type": "attachment",
    "action": "added",
    "item": { "id": 44, "uniqueid": "dg746287", "filename": "scope.pdf" }
  }
}

`estimate.deleted`

Grow CRM fires estimate.deleted after the estimate record is permanently removed. Because the record no longer exists, data contains only the estimate’s id.

{
  "event": "estimate.deleted",
  "id": 118,
  "created": "2026-07-16T08:15:00+00:00",
  "data": { "id": 118 }
}

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Estimate Webhooks — Payload Reference | Grow CRM

The estimate object

The line item shape

`estimate.created`

`estimate.updated`

`estimate.sundry`

`estimate.activity`

`estimate.deleted`

​The estimate object

​The line item shape

​estimate.created

​estimate.updated

​estimate.sundry

​estimate.activity

​estimate.deleted

The estimate object

The line item shape

`estimate.created`

`estimate.updated`

`estimate.sundry`

`estimate.activity`

`estimate.deleted`