Trying to get my company portal to work with single sign on

my company has created company store and they would like to embed a link to the web page where it pulls the users credentials of the person that has signed into the web page and creates the link to go the web page so that there servers can create the users account according to the credentials that the script pulls from the server. can you please help me with this so that i can give my company some good news on this thank you in advance if you need i have a copy of the PHP script that will create the web link to the web store. thank you in advance for the help

i am not sure if this poet is actually posting or not