For some actions in the Weave app, you'll have to have a specific role. See what role you currently have:
- Open the Weave Portal
- Select Account from the left menu
- Click Users from the dropdown
- Find yourself in the Users list
From here, you can see your role to the right of your name. If you have the Admin role, you can also edit and add users. If you do not, ask the admin in your office to make changes.