Most of the frequently asked questions are covered by:
https://support.jumpcloud.com/customer/en/portal/articles/2551066-single-sign-on-sso-with-generic-saml-2-0-connector and https://support.jumpcloud.com/customer/portal/articles/2775691
Step-By-Step Guide:
1. From your Jumpcloud admin console, navigate to applications and click the + button
2. Click configure next to the Saml 2.0 Application
3. Enter a display label, Idp Entity ID and SP entity ID in the relevant fields. The Idp Entity ID and SP entity can be any unique string
4. The ACS URL should be copied from your Avanan portal. From the Avanan portal click Configuration -> settings-> Configure Saml
In the configure SAML window you will see your ACS URL, copy it and paste it in the Jumpcloud field
5. In the Jumpcloud console check off the Sign assertion and Declare redirect endpoint boxes
7. Click active in the bottom right and then export the generated meta data file
8. Upload the exported meta data to your Avanan portal, uncheck the box that says Are you running Azure AD
9. From the Jumpcloud console assign users to the newly created Jumpcloud application. Navigate to groups and select a user group. From the edit group window, click the applications tab and select the newly created App, then click save
10. You can now login to the Avanan portal using SAML
