These steps will guide you through setting up the single sign-on functionality between ADSelfService Plus and Dropbox
Log in to ADSelfService Plus as an administrator.
Navigate to Configuration → Self-service → Password Sync/Single Sign-on.
Search for Dropbox and select it.
Click Download SSO Certificate link in the top-right corner of the screen.
Dropbox (Service Provider) configuration steps
Login to Dropbox with an administrator’s credentials.
Click on Admin Console in the left-pane.
In the tab that opens, click on Settings in the left-pane and select Single Sign on.
Click the drop-down box against the Single sign-on sign and select either Optional/Required based on your need.
Selecting Optional will allow users to log on to Dropbox with Single sign-on or their Dropbox password. Selecting Required will only allow users to login through Single sign-on.
Edit Identity provider sign-in URL field and provide the sign-in URL copied in the Step 5 of Prerequisite.
Click on the X.509 certificate field and upload the certificate downloaded in the Step 5 of Prerequisite.
Click Apply changes to confirm.
Copy the Sign-in URL , we will need it in later steps.
ADSelfService Plus (Identity Provider) configuration steps
Now, switch to ADSelfService Plus’ Dropbox configuration page.
In the Domain Name field, enter the domain name of your email address. For example, if you use firstname.lastname@example.org to log in to Dropbox Online, then thinktodaytech.com is the domain name.
Enter the SAML Redirect URL you had saved in Step 9 of Dropbox configuration.
Enter a Description for the connection.
In the Available Policies field, select the policies for which you wish to enable single sign-on.
Your users should now be able to sign in to Dropbox Online through ADSelfService Plus.
For Dropbox, both SP and IDP initiated flows are supported.