3rd Party Cookies

Most modern browsers block 3rd party cookies. Therefore, the best practice is to use the same domain for the different apps and put it behind a specific path.
For example: companyA.com/analytics
If you do not want, or are unable, to use the solution above, you can use one of the following options instead:

• Use the Using Web Access Tokens feature.
• Allow 3rd party cookies via your browser settings.