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

# Initiate delta budget export (async)



## OpenAPI

````yaml /tango_common/integrations/guides/budget-outbound.yaml get /v1/projectmgmt/delta/budgets
openapi: 3.1.0
info:
  title: Tango Budget Outbound API
  version: '0.3'
  description: |
    Async **delta** REST API: client GETs newly-approved or updated budget
    line items from Tango. Paginated (page_size 5000, page_no parameter).
    Null fields are omitted from the JSON.

    NOTE: source's `integration type` header says "space Area outBOUND api"
    while the document title is "BUDGET outbound API". The descriptive
    content (project budget lines, tasks, milestones) clearly indicates
    budgets, not space areas — assumed a stale header. Flagged in Open
    Questions.
  x-direction: outbound
  x-source: Tango
  x-destination: Client System
servers:
  - url: https://api.tangoanalytics.com
    description: Production
  - url: https://testapi.tangoanalytics.com
    description: Test (SIT/UAT)
security:
  - xClientHeader: []
    xApiKeyHeader: []
tags:
  - name: Budgets (Delta)
  - name: Status
paths:
  /v1/projectmgmt/delta/budgets:
    get:
      tags:
        - Budgets (Delta)
      summary: Initiate delta budget export (async)
      operationId: getBudgetsDelta
      parameters:
        - $ref: '#/components/parameters/XClient'
        - $ref: '#/components/parameters/XApiKey'
      responses:
        '200':
          description: Async ack with gu_id.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AcceptedResponse'
components:
  parameters:
    XClient:
      name: x-client
      in: header
      required: true
      schema:
        type: string
    XApiKey:
      name: x-api-key
      in: header
      required: true
      schema:
        type: string
  schemas:
    AcceptedResponse:
      type: object
      required:
        - status
      properties:
        status:
          type: string
          enum:
            - OK
            - Error
        status_message:
          type: string
        gu_id:
          type: string
          format: uuid
  securitySchemes:
    xClientHeader:
      type: apiKey
      in: header
      name: x-client
    xApiKeyHeader:
      type: apiKey
      in: header
      name: x-api-key

````