There may be cases where you want to provide a link back to the form inside the form itself. One example might be if you want to give users the option to open a form in a different language. The user opens the form, chooses a language, and sees a link to reload the form in that language. In this case, it's important to use the Raw Form/Workflow Link with the parameter resize=true. The raw form link opens in the original iframe. If you attempt to use the Email/Webpage link, the form will open in an iframe inside the original iframe, and result in issues such as inability to scroll through the form.
Usually your form/workflow's Access Control settings will determine its accessibility. If a form/workflow has the Who can Start the Form/Workflow? permission set to Authenticated Users (login required), for example, unauthenticated users will automatically be prompted to login to access it. However, there may be times you want to require a login before accessing a public form (Access Control for Who can Start the Form/Workflow set to Anyone (login not required). In that case, you can construct a share URL that uses the target-uri query parameter to send the user to the login page first.
Cloud: https://app.frevvo.com:443/frevvo/web/login?target-uri=<form relative url> In House: https://<your server host>:<port>/<frevvo home>/web/login?target-uri=<form relative url>
Replace the <form relative url> with your form's relative share url (just the part of the url starting with /frevvo/...).