For convenient login to VAS Cloud you can configure authorization by token. It allows a GUI-authorized user to visit VAS Cloud without re-authorization.
Authorization by token is relevant for those who use VAS Cloud subscriptions. The token is bound to the user and is perpetual.

The token is specified under Administrator → GUI configuration → VasCloud settings → VAS Cloud API token.
To issue a token, contact technical support, specifying the name of the company and the user for whom you want to issue the token.