setUserProperty

PUT /rest/api/3/user/properties/{propertyKey} HTTP/1.1

{
  "accountId": {
    "description": "The account ID of the user, which uniquely identifies the user across all Atlassian products. For example, *5b10ac8d82e05b22cc7d4ef5*.",
    "required": false,
    "location": "query",
    "type": "string"
  },
  "userKey": {
    "description": "This parameter is no longer available and will be removed from the documentation soon. See the [deprecation notice](https://developer.atlassian.com/cloud/jira/platform/deprecation-notice-user-privacy-api-migration-guide/) for details.",
    "required": false,
    "location": "query",
    "type": "string"
  },
  "username": {
    "description": "This parameter is no longer available and will be removed from the documentation soon. See the [deprecation notice](https://developer.atlassian.com/cloud/jira/platform/deprecation-notice-user-privacy-api-migration-guide/) for details.",
    "required": false,
    "location": "query",
    "type": "string"
  },
  "propertyKey": {
    "description": "The key of the user's property. The maximum length is 255 characters.",
    "required": true,
    "location": "path",
    "type": "string"
  }
}

{}