Adds a user to an office.

Adds an existing user to a single office. You specify the office to which you want to add the user in the `designatedOffice` request body. To add a user to multiple offices, you must make this call separately for each office. **Note:** The `accessLevel` of the user that you are adding must be `contributor` or `office`. ## Permissions You must have at least one of the following permissions set to **true,** depending on the level of the user that you want to add or remove: - `canManageMemb...