This video shows the SSO integration and how to use Salesforce as Identity provider.
To enable SSO Follow These steps:
1- Create a certificate in your salesforce organisation.
a. Head over to Setup=> Security Controls => Certificate and key management.
b. Create a new certificate.
c. Download your certificate.
2- Assign your created to certificate to the Identity Provider
a. Head over to Setup=> Security Controls => Identity Provider click edit and assign your certificate.
b. Under “SAML Metadata Discovery Endpoints” => Salesforce Identity copy the link and open in a new tab, look for “entityID” and copy the value somewhere (we will use this value later)
3- Create a connected app.
a. (In lightning) head over to Setup => Apps => App Manager => Click New Connected APP, in classic you have a link in the identity provider page to create new connected app:
b. Name your connected app, and fill in the contact email.
c. Check the “Enable SAML” check box.
d. In the “Entity Id” put this value: https://saml.salesforce.com
e. To get the value for “ACS URL” follow these steps:
- Login to your formtitan account, head over to “My Account” => Push Settings / Logs scroll down and find SSO on the left side and click “Grant Access” sso auth window will pop up: 
- Copy the Access URL into “ACS URL” field in your connected app.
f. Set the “Name ID Format” pick list to: “urn:oasis:names:tc:SAML:2.0:nameid-format:transient”
g. Set the “IdP Certificate” to the certificate from step 1.
h. Set the “Issuer” from the “entityID” from step 2b.
i. Leave everything else as default. 
j. Save the connected app
k. Click “Manage”, grab the “Issuer” and paste it into the “Entity ID” in FormTitan, grab the “IdP-Initiated Login URL” and paste it into the “ SSO login URL” in FormTitan.
l. Paste in your certificate 
- Click “Test”, if you have setup everything correctly an “Apply” button will show, click it and you have finished setting up SSO.
* If, for some reason your SP Initiated SAML SSO gives an “Insufficient Privileges” error - please click here to read how to deal with it.
Watch the video