> ## 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 project-attribute export (async)



## OpenAPI

````yaml /tango_projects/integrations/guides/project-attributes-outbound.yaml get /v1/projectmgmt/delta/projects
openapi: 3.1.0
info:
  title: Tango Project Attributes Outbound API
  version: '0.3'
  description: |
    Async REST API for retrieving project attribute records updated since the
    last integration run (delta API). Two-call pattern: client GETs the delta
    endpoint to receive a `gu_id`, then GETs `/v1/batch/status` with the gu_id
    to paginate through records. Default page size is 5000; the response header
    indicates total pages and total records.

    A record is marked for export when any field other than internal identifiers
    (`project_id`, `brand_id`, `entity_id`, `template_id`, `budget_template_id`,
    `master_project_id`, `parent_location_id`) is updated.

    NOTE: the source design doc does not include a field-level data-mapping
    table — only `project_id` and `project_name` appear in the sample. The
    complete field set is unknown; this spec captures only the known fields
    and flags the gap in the companion Markdown.
  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: Project Attributes
  - name: Status
paths:
  /v1/projectmgmt/delta/projects:
    get:
      tags:
        - Project Attributes
      summary: Initiate delta project-attribute export (async)
      operationId: getProjectAttributesDelta
      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'
              examples:
                ok:
                  value:
                    status: OK
                    status_message: ''
                    gu_id: 721c54c4-c7aa-4fa1-8fdfd6-c0cee161694d
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

````