There is no "Add Member" button in the Members page under company settings.
When using paid SSO (Single-Sign-On) integration option, "Notify Members" button will be displayed instead of the "Add Member" button.
When you click the "Notify Members" button and enter an email address, a notification e-mail will be sent to the relevant member.
After member signed in the SSO portal and logged in to for YarakuZen for the first time, the account will be created automatically.
* When SSO integration is enabled, there is no create and account on YarakuZen step, so please make sure to sign into YarakuZen through the SSO portal first.