Technical Tip: How to reduce the generated IdP prefix in order to allow for more than 16 IdPs/Domains

[Anonymous]

Description	This article describes how to reduce the generated IdP prefix to allow for more than 16 IdPs/Domains.
Scope	FortiAuthenticator.
Solution	Steps to decrease the IdP prefix to increase the IdP/domain count: Add SP by going to Authentication -> SAML IdP -> Service Providers and selecting 'Create New'. Input all relevant information. For 'IdP Metadata', select the plus sign. Select 'Random' and a 16-character prefix is populated. Limit is 255 (alphanumeric (26 + 10)) characters.  As such, for 16 16-character prefix, it is possible to make 16 domains. Ensure all prefixes are unique. Decrease this to as low as 3 to be able to get the most out of the 255 limit. 2 or lower, and not so many unique combinations are getting. This process is also applicable for manually creating the IdP prefix. Simply do not do step 4.