If you have attempted to configure the Dropbox SAML application in AuthAnvil Single Sign On v4.6 and found the reply to URL as follows.
The correct Reply to URL is: https://www.dropbox.com/saml_login
You can use the following SQL Query in SQL Management Studio to set the correct reply to URL.
Set ReplyToUrl = 'https://www.dropbox.com/saml_login'
Where id = 14
Note: you are using SSO 4.5.3 or lower, then the "id" would be changed to 13
This issue will be permanently resolved in the next version of Single Sign On.
Drop box's configuration information can be found here: https://www.dropbox.com/en/help/1909.