If you have been asked to acknowledge or sign a document or policy, these will be sent to you as a Letter. You can sign these from the mobile app if you have a signature saved in your account.
When you log in, the letter will be in your Actions Items list.
Open the letter and you will see an "Acknowledge" or a "Sign" button, depending on what action the company wants you to take. Click the button to action the form and the form will close and you will be returned to the Action Item list. You will not be able to preview your signature before signing. If you would like to update or check your signature prior to signing, you can go to the Settings menu > Change Signature.
After the letter is signed, it will be available in your Files menu to view or download as necessary.