# Activate

## Activate a campaign

> Activate a campaign for a visitor ID

```json
{"openapi":"3.1.1","info":{"title":"Flagship Decision API","version":"2.0"},"servers":[{"url":"/v2"}],"paths":{"/activate":{"post":{"description":"Activate a campaign for a visitor ID","operationId":"activate","responses":{"204":{"description":""},"400":{"description":"Bad Request","content":{"application/json":{"schema":{"$ref":"#/components/schemas/handlers.errorMessage"}}}},"500":{"description":"Internal Server Error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/handlers.errorMessage"}}}}},"summary":"Activate a campaign","tags":["Activate"],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/handlers.activateBody"}}},"description":"Campaign activation request body","required":true}}}},"components":{"schemas":{"handlers.errorMessage":{"properties":{"message":{"type":"string"}},"type":"object"},"handlers.activateBody":{"properties":{"aid":{"type":"string"},"caid":{"type":"string"},"cid":{"type":"string"},"vaid":{"type":"string"},"vid":{"type":"string"}},"required":["caid","cid","vaid","vid"],"type":"object"}}}}
```