Originally Posted by Grouchy

There is always Privium, you need to go to the special Privium gates at every border control at Schiphol. Fast (security) and border clearance.
Also currently no guests allowed at certain times by KLM @AMS;

As of 1 June 2017 until March 2019 from 07:30 to 11:00 hours (peak hours) the following entry rules apply:

* Lounge vouchers are not accepted.
* Staff and Duty travel customers are not accepted
* Guests of Flying Blue Platinum and Flying Blue Gold and SkyTeam Elite Plus members are only accepted outside peak hours
* Guests of Ultimate, Skipper and C2000 customers are accepted
* Customers travelling to a Schengen destination can make use of the KLM Schengen Crown Lounge (25) instead.