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Meeting Scheduled - Fulfillment Actions will trigger when a meeting is scheduled.

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Creating Prospects from Meetings

System can automatically create new Prospects from scheduled meetings. To use this option, go to Setup > App Setup > Email > Sales Enablement and enable this setting:

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Once enabled, system will create a new Prospect if one does not already exist. All people invited to the meeting, including additional participants, will be created as new Prospects as well.