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

# Upsert a VIP member's tier and profile



## OpenAPI

````yaml /api-reference/openapi.json put /v1/members/{externalUserID}
openapi: 3.0.3
info:
  description: Public REST API for embedding Expys experiences into a client app.
  title: Expys API
  version: 1.2.0
servers:
  - url: https://api.expys.com
    description: >-
      Expys API. Sandbox and live share this host; the environment is selected
      by which key you exchange for a member token, not by the URL.
security: []
paths:
  /v1/members/{externalUserID}:
    put:
      tags:
        - Members
      summary: Upsert a VIP member's tier and profile
      operationId: setMember
      parameters:
        - in: path
          name: externalUserID
          required: true
          schema:
            minLength: 1
            type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SetMemberRequest'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SetMemberResponse'
          description: Response for status 200
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '401':
          description: Authentication is missing or invalid.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '403':
          description: Authenticated, but not permitted to access this resource.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '429':
          description: Rate limit exceeded; honor the Retry-After header.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
        '500':
          description: An unexpected server error occurred.
          headers:
            X-Request-Id:
              description: >-
                Per-request correlation id. Quote it to support to trace the
                call in the server logs.
              schema:
                type: string
      security:
        - ApiKeyBearer: []
        - ApiKeyHeader: []
      x-codeSamples:
        - lang: curl
          label: curl
          source: |-
            curl -X PUT https://api.expys.com/v1/members/<externalUserID> \
              -H "Authorization: Bearer YOUR_ORG_API_KEY" \
              -H "Content-Type: application/json" \
              -d '{
                "attributes": {},
                "displayName": "string",
                "tier": "string"
              }'
components:
  schemas:
    SetMemberRequest:
      properties:
        attributes:
          type: object
          additionalProperties: true
        displayName:
          type: string
        tier:
          type: string
      type: object
    SetMemberResponse:
      properties:
        attributes:
          nullable: true
          type: object
          additionalProperties: true
        displayName:
          nullable: true
          type: string
        externalUserID:
          type: string
        tier:
          type: string
      required:
        - attributes
        - displayName
        - externalUserID
        - tier
      type: object
  securitySchemes:
    ApiKeyBearer:
      description: Org-API-Key as a Bearer token.
      scheme: bearer
      type: http
    ApiKeyHeader:
      description: Org-API-Key as a header.
      in: header
      name: x-api-key
      type: apiKey

````