We are using MSI on both lead/contact objects and feel for the tool (MSI) to be useful on the account object the following improvements would be useful;
Ability to categorise interesting moments, this would be especially useful under the account view - What I mean here is specifically being able to 'roll-up' specific interesting moments under certain campaigns/programs that have been launched AND/OR the ability to filter and 'roll-up' certain categories of interesting moments perhaps using tags or key words
Ability to segment data on a date range
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