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No Owner Secondary Calendars
Ross Scroggs edited this page Feb 9, 2026
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Here's a start on how to get information for non-owned secondary calendars
Save the CSV file that Google sent you as NoOwnerSecCals.csv
Get calendar description and summary for non-owned secondary calendars.
- There will be one row per calendar.
gam config num_threads 10 csv_output_header_force "calendarId,description,summary" redirect csv ./NOSC_Details.csv multiprocess redirect stderr - multiprocess csv NoOwnerSecCals.csv gam calendar "~Secondary calendar email" print settings fields description,summary
Get event counts for non-owned secondary calendars.
- There will be one row per calendar.
gam config num_threads 10 redirect csv ./NOSC_EventCounts.csv multiprocess redirect stderr - multiprocess csv NOSC_Details.csv gam calendar "~calendarId" print events countsonly addcsvdata description "~description" addcsvdata summary "~summary"
Get summary for non-owned secondary calendars - Contains details, counts, ACLs
- There will be one row per calendar/ACL combination
gam config num_threads 10 redirect csv ./NOSC_Summary.csv multiprocess redirect stderr - multiprocess csv NOSC_EventCounts.csv gam calendar "~calendarId" print acls noselfowner addcsvdata description "~description" addcsvdata summary "~summary" addcsvdata events "~events"
You can add an owner.
- Replace
admin@domain.comwith a super admin other than the one from:gam oauth info
gam config num_threads 10 redirect stdout ./Add_NOSC_Owner.txt multiprocess redirect stderr stdout csv NoOwnerSecCals.csv gam calendar "~Secondary calendar email" add acls owner admin@domain.com sendnotifications false
After inspecting NOSC_Summary.csv, you can delete the calendars if desired.
- Replace
admin@domain.comwith the super admin specified in the previous step
gam config num_threads 10 redirect stdout ./Delete_NOSC.txt multiprocess redirect stderr stdout csv NoOwnerSecCals.csv gam user admin@domain.com remove calendar "~Secondary calendar email"
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