# Apply an authorisation rule

Apply an authorisation rule. This will result in the rule being evaluated against every incoming card authorisation request.

Endpoint: POST /v3/spend/applications/{clientId}/spend-controls/rules/apply
Security: ClientCredentialsToken

## Path parameters:

  - `clientId` (string, required)
    The application client ID.

## Request fields (application/json):

  - `ruleId` (string)
    The ID of the authorisation rule.


## Response 200 fields