> ## Documentation Index
> Fetch the complete documentation index at: https://api-docs.select.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Test-send a monitor

> Renders the monitor's message against current data and sends it to the monitor's destinations now, with its title prefixed `[MONITOR PREVIEW]`, whether or not the trigger would fire. Nothing is recorded in the monitor's run history. A message that cannot be rendered or delivered is rejected with the reason. Requires `monitors:read`.



## OpenAPI

````yaml https://api.select.dev/v2/openapi.json post /monitors/{monitor_id}/actions/test-send
openapi: 3.1.0
info:
  title: SELECT API (v2)
  version: 0.1.0
servers:
  - url: https://api.select.dev/v2
    description: SELECT API v2
security: []
tags:
  - name: metrics
    description: >-
      Query cost and usage data across Snowflake, BigQuery, Databricks and
      Tableau. Each route is `POST /v2/metrics/<model>/query` for one semantic
      model. Every route takes the same body shape and returns the same response
      shape. Each route page gives guidance on when to use the route, and worked
      examples.


      ## Body shape


      | Field | Meaning |

      | --- | --- |

      | `measures` | Aggregates to compute, for example `sum_spend`. |

      | `dimensions` | Fields to group by. Each one is returned on every row. |

      | `filter_expression` | An `and`/`or` tree of filters on dimensions,
      applied before aggregation. |

      | `measure_filters` | Filters on measures, applied after aggregation. |

      | `sort` | The order of the rows: `[{"field": "sum_spend", "direction":
      "desc"}]`. |

      | `limit` | The maximum number of rows. Results are not paginated: `limit`
      cuts the result short, and there is no next page. Omit `limit` to get all
      rows. |

      | `aggregate` | Set `false` to list the rows with no grouping. See
      "Listing rows". |


      v2 accepts only `filter_expression`. The body refuses the legacy `filters`
      list.


      ## Filter on dates


      Filter on the `day` field. Use two filters (both bounds are inclusive):


      ```json

      {"operator": "and", "filters": [
        {"field": "day", "operator": ">=", "value": "2026-08-01"},
        {"field": "day", "operator": "<=", "value": "2026-08-31"}], "limit": 1000}
      ```


      Or use one relative filter: `{"field": "day", "operator": "in range",
      "value": "30D"}`. The values are `{N}D` and `{N}M` (the last N days or
      months, today included), `WTD`, `MTD`, `QTD`, `YTD`, and `LMTD` (the whole
      previous calendar month).


      - Do not filter on `hour`, `week`, `month` or `quarter` to bound a range.
      Filter on `day`, and use the coarser fields as dimensions.

      - A timestamp such as `start_time <= "2026-08-31"` compares to midnight
      and drops most of that day. Use `day`, or `start_time < "2026-09-01"`.

      - A snapshot route (for example `snowflake-storage-summary`) describes the
      current state, and a `day` filter does not bound its size and cost fields.
      On routes that join the snapshot to activity, `day` bounds only the
      activity fields. Each route page says which fields these are.


      ## Which measure is cost


      - `sum_spend` (or `spend`, or `cost` on some routes) is the dollar cost in
      the filtered period. Use it for "how much did we spend".

      - `*_annualized` measures extend the spend of the filtered period to a
      year: a `7D` range gives that week's spend times 365 / 7. They are
      projections, not spend.

      - On snapshot routes, `annual_cost`, `*_monthly_cost` and `*_annual_cost`
      are the current rate extended to a month or a year. A date range does not
      bound them.

      - Do not present any of these run-rates as spend in a period.

      - Databricks routes also give DBUs (for example `sum_task_usage`). DBUs
      are not dollars.


      The `spend` route is the consolidated cost of every platform. Use it for
      totals, trends and breakdowns by service. Use a platform route to explain
      what inside the platform caused the cost.


      ## Text values are case-sensitive


      Filter values must match the stored case. A value in the wrong case
      matches no rows, with no error. For example:


      - On `spend`, `connection_type` is `Snowflake`, `Bigquery` or
      `Databricks`, and `"snowflake"` matches nothing.

      - On `search`, `data-freshness` and `workload-metadata-suggestions`,
      `connection_type` is lowercase: `snowflake`, `bigquery`, `databricks`.

      - On `snowflake-workloads`, most `resource_type` values are lowercase keys
      (`query_pattern`, `dbt`), but the AI types are title case (`Cortex
      Analyst`).


      ## Usage groups


      A usage group set divides cost into named groups, such as departments or
      teams. To group by the groups of one set, name the set in `path`:


      ```json

      {"dimensions": [{"field": "usage_group", "path": ["Department"]}],
      "limit": 1000}

      ```


      `path[0]` is the name of the set, not its ID. A plain `"usage_group"`
      dimension groups by every set at once. The same `{"field": ..., "path":
      [...]}` form reads keys of other semi-structured fields, for example
      workload metadata.


      ## Period over period


      Some routes publish `<measure>_previous_period`, `change_<measure>` and
      `percent_change_<measure>`. These measures need one bounded date range on
      `day`, at the top level of `filter_expression`:


      - Use two bounds on `day`, or one `in range` filter. Do not mix the two
      forms.

      - Do not nest the date filter in a sub-expression, and do not bound the
      range with `month` or `quarter`.

      - The previous period is the same number of days, just before the range.
      For `QTD` on 2026-09-28 (2026-07-01 to 2026-09-28, 90 days), the previous
      period is 2026-04-02 to 2026-06-30, not the previous calendar quarter.


      ## Listing rows


      Set `"aggregate": false` and name only `dimensions` to get the rows as
      they are, for example the individual queries that ran longer than ten
      minutes. If the body also names `measures` or `measure_filters`, the route
      aggregates, with no error. Always set a `limit` on a listing.


      ## Default scoping filters


      Some tables hold more than one kind of row, and the SELECT app filters to
      one kind by default. Each route page names these filters. For example:


      - `snowflake-query-patterns`: `{"field": "resource_type", "operator":
      "in", "values": ["query_pattern"]}`. `bigquery-query-patterns` filters
      `workload_type` to `bigquery_query_pattern`, and
      `databricks-query-patterns` filters `resource_type` to
      `databricks_query_pattern`.

      - `snowflake-dbt`: `{"field": "dbt_node_resource_type", "operator": "=",
      "value": "model"}`. Without it, tests, seeds and snapshots rank with
      models. The same filter applies to `bigquery-dbt-queries` and
      `databricks-dbt-queries`.


      ## Teams


      Send `X-Team-Id` to evaluate a query as a team you belong to. The rows are
      then limited to what the team's roles can reach.


      ## Which route answers which question


      | Question | Route |

      | --- | --- |

      | Total spend, spend trend, spend by platform, service or usage group |
      `spend` |

      | Most expensive Snowflake warehouses | `snowflake-workloads` (or
      `snowflake-warehouses` for metering spend) |

      | Warehouse utilization, idle spend, cluster usage |
      `snowflake-warehouses`, `snowflake-warehouse-clusters` |

      | Query latency, spillage and bytes scanned on a warehouse |
      `snowflake-warehouse-query-performance` |

      | Most expensive recurring queries | `snowflake-query-patterns` |

      | Individual queries | `snowflake-queries` |

      | Cost of dbt models, and of dbt runs | `snowflake-dbt`,
      `snowflake-dbt-invocations` |

      | Cost of tasks, stored procedures, dynamic tables | `snowflake-tasks`,
      `snowflake-stored-procedures`, `snowflake-dynamic-tables` |

      | Cost of BI tools (Looker, Mode, Hex, Sigma, Periscope, Tableau) |
      `snowflake-looker`, `snowflake-mode`, `snowflake-hex`, `snowflake-sigma`,
      `snowflake-periscope`, `tableau-queries` |

      | Cost of Fivetran, and of workloads defined by query tags |
      `snowflake-fivetran`, `snowflake-custom-workloads` |

      | Serverless, automatic clustering and Snowpipe cost |
      `snowflake-serverless`, `snowflake-automatic-clustering`,
      `snowflake-snowpipe` |

      | Storage cost in a period | `snowflake-storage`, `bigquery-storage-spend`
      |

      | Largest or unused tables now | `snowflake-storage-summary`,
      `bigquery-storage-summary` |

      | Which workloads read or write a table | `lineage-workloads`,
      `lineage-tables`, `lineage-edges` |

      | BigQuery cost by project, job or query pattern | `bigquery-projects`,
      `bigquery-jobs`, `bigquery-query-patterns` |

      | BigQuery reservations and commitments | `bigquery-reservation-timeline`,
      `bigquery-commitments`, `bigquery-commitment-scopes` |

      | Databricks cost by job, query, SQL warehouse or cluster |
      `databricks-jobs`, `databricks-queries`, `databricks-sql-warehouses`,
      `databricks-clusters` |

      | Savings from SELECT actions | `action-realized-savings` |

      | How current the data is | `data-freshness` |
paths:
  /monitors/{monitor_id}/actions/test-send:
    post:
      tags:
        - monitors
      summary: Test-send a monitor
      description: >-
        Renders the monitor's message against current data and sends it to the
        monitor's destinations now, with its title prefixed `[MONITOR PREVIEW]`,
        whether or not the trigger would fire. Nothing is recorded in the
        monitor's run history. A message that cannot be rendered or delivered is
        rejected with the reason. Requires `monitors:read`.
      operationId: send_monitor_test_route_monitors__monitor_id__actions_test_send_post
      parameters:
        - name: monitor_id
          in: path
          required: true
          schema:
            type: string
            title: Monitor Id
        - name: x-tenant-id
          in: header
          required: true
          schema:
            type: string
            description: The organization ID the request is scoped to.
            title: X-Tenant-Id
          description: The organization ID the request is scoped to.
      requestBody:
        content:
          application/json:
            schema:
              anyOf:
                - $ref: '#/components/schemas/MonitorTestSend'
                - type: 'null'
              title: Body
      responses:
        '204':
          description: Successful Response
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '408':
          $ref: '#/components/responses/RequestTimeout'
        '409':
          $ref: '#/components/responses/Conflict'
        '422':
          $ref: '#/components/responses/ValidationFailed'
        '429':
          $ref: '#/components/responses/RateLimited'
        '500':
          $ref: '#/components/responses/InternalError'
        '503':
          $ref: '#/components/responses/ServiceUnavailable'
      security:
        - HTTPBearer: []
components:
  schemas:
    MonitorTestSend:
      properties:
        partition_value:
          anyOf:
            - additionalProperties:
                anyOf:
                  - type: string
                  - type: number
                  - additionalProperties: true
                    type: object
                  - type: string
                    format: date
                  - type: string
                    format: date-time
                  - items:
                      type: string
                    type: array
                  - items:
                      additionalProperties:
                        anyOf:
                          - type: string
                          - type: number
                          - additionalProperties: true
                            type: object
                          - type: string
                            format: date
                          - type: string
                            format: date-time
                          - items:
                              type: string
                            type: array
                          - type: 'null'
                      type: object
                    type: array
                  - type: 'null'
              type: object
            - type: 'null'
          title: Partition Value
          description: >-
            On a partitioned monitor, the partition to render the message for,
            as its column values keyed by column title. Null renders the monitor
            as a whole.
      additionalProperties: false
      type: object
      title: MonitorTestSend
      description: Sends a saved monitor's message now, as a test.
    ProblemDetail:
      additionalProperties: true
      description: >-
        RFC 9457-style error payload, served as ``application/problem+json``.


        ``code`` is the stable, machine-readable identifier — consumers branch
        on it,

        never on ``title``. ``type`` stays ``about:blank``: we keep no per-error

        documentation pages. There is no ``instance``/request-id member (we
        don't run

        access logs). See the flat error-code catalogue in §4 of the standards
        doc.
      properties:
        type:
          default: about:blank
          title: Type
          type: string
        title:
          type: string
          title: Title
        status:
          title: Status
          type: integer
        detail:
          title: Detail
          type: string
        code:
          title: Code
          type: string
        retryable:
          title: Retryable
          type: boolean
        details:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          default: null
          title: Details
      required:
        - title
        - status
        - detail
        - code
        - retryable
      title: ProblemDetail
      type: object
  responses:
    BadRequest:
      description: Bad request
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
    Unauthorized:
      description: Unauthorized
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
      headers:
        WWW-Authenticate:
          description: Authentication challenge for the requested resource.
          required: true
          schema:
            type: string
    Forbidden:
      description: Forbidden
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
    NotFound:
      description: Not found
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
    MethodNotAllowed:
      description: Method not allowed
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
      headers:
        Allow:
          description: HTTP methods supported by the requested resource.
          required: true
          schema:
            type: string
    RequestTimeout:
      description: Request Timeout
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
    Conflict:
      description: Conflict
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
    ValidationFailed:
      description: Validation failed
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
    RateLimited:
      description: Rate limited
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
      headers:
        Retry-After:
          description: Number of seconds to wait before retrying the request.
          required: true
          schema:
            type: integer
            minimum: 0
    InternalError:
      description: Internal error
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
    ServiceUnavailable:
      description: Service unavailable
      content:
        application/problem+json:
          schema:
            $ref: '#/components/schemas/ProblemDetail'
      headers:
        Retry-After:
          description: Number of seconds to wait before retrying the request.
          required: true
          schema:
            type: integer
            minimum: 0
  securitySchemes:
    HTTPBearer:
      type: http
      description: Organization API key (sl_…).
      scheme: bearer

````