Zoho Campaing with Recruit Sync frequency

Zoho Campaing with Recruit Sync frequency

Hi,

I have a contact list in Zoho Campaigns being synced with Zoho Recruit using the sync service.
However, i noticed that the sync doesn't happen automatically, even if there are new candidates in Zoho Recruit. Only if I pause and unpause the sync, it works one time.
What is the frequency a sync takes place? Or what is the trigger for the sync to start?

I am using the new sync integration.

This is the sync service:

I can't find the details on the helpdesk: https://help.zoho.com/portal/en/kb/campaigns/user-guide/import-contacts/revamped-sync-setup/articles/set-up-sync-with-recruit#Push_data_to_Zoho_Recruit

Questions:
  1. how can I force the sync to do a daily, weekly, or monthly sync?
  2. Or what is the trigger for the sync module to activate?
Thanks,