Gmail integration
I have my gmail account connected to WeekPlan (WP). I successfully getting my events from that Calendar, but I do also have other shared calendar on primary gmail account connected to WP and events from those other shared calendars do not sync on WP.
Do
App:
Web app
If you want to sync your shared calendar events in the WeekPlan, you need to set the Pull setting on for those calendars. Let me know if it still doesn't help.