I would like to know how to get a report to show how much activity has taken place on the CRM in any certain day/week
If you mean a single report that covers communications, new leads, new company records new cases etc then you will find that it will be difficult to create a standard Sage CRM report that produces this.
You could create a custom ASP report that brings everything you need together.
An alternative is to deliver this customised 'report' into a Dashboard. See: community.sagecrm.com/.../sage-crm-2017-r1-using-a-website-gadget-to-include-a-custom-script-page-in-an-interactive-dashboard.aspx
But probably the easiest way to do handle this is to create a series of reports with charts that are then called as separate gadgets in a Dashboard to provide managers with the information they need.
If you are talking standard communication activity then the out of the box Reports>Activity>Activity Breakdown by User report will show you have any communications (calls, meetings, emails etc) have been put into the system by user over a specified date range.
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