Can Interesting Moments and Web Activity be written on the Account object in SalesForce?
Marketo does not have permissions or capabilities to write to the account object. Marketo can only write data to the Contact or Lead Object in SalesForce. If you want to have that data recorded on the Account object, you would be able to setup a custom SalesForce work flow to add that data to a field or as an activity in SalesForce. This data will not be usable or recognized by sales insight however.