Admin Permissions Required
If Marketo users want to view their lead feed not only in Salesforce, but also in an RSS feed, a Marketo Admin must enable it first. It’s easy.
In My Marketo, click Admin and then Sales Insight.
On Settings, click Edit. Note that the RSS Feed displays as Disabled.
In the Edit Settings dialog box, check the RSS feed checkbox and click Save.
The RSS feed now displays as Enabled.
Piece of cake!