Single Sign On for Customer records

Hi All,

We have customers  who are using some of our external applications. Now we want to integrate these external applications with the CRM. Once we integrate, we want to implement Single Sign on feature in CRM. The customer whose record is available in CRM will be able to login once and then will be able to access other external applications.

Please let me know the solution for the same.

Thanks in advance.

Regards,

Subh