Returns the flat list of expense categories applicable to the current employee. Only active categories are returned, filtered by the employee's country / legal-entity visibility rules. Leaf nodes have is_selectable: true; parent nodes are excluded unless include_parents=true.

Authentication

This endpoint accepts any one of the following token types:

• Employee-scoped access token (OAuth2Assertion) — obtained through the urn:ietf:params:oauth:grant-type:jwt-bearer grant. See OAuth Assertion.
• Company-scoped access token (OAuth2AuthorizationCode) — obtained by the employee through the Authorization Code flow or the Refresh Token flow. See Authentication for partners.

Scopes

Any one of the scopes in a token type's row is enough. all:read and all:write work too.