Salesforce Custom Object Not Visible in Salesforce Objects Sync

Description description

Issue Description
The custom object you created in Salesforce isn’t showing up in the tree in Salesforce Objects Sync, or isn’t showing up at the right level in the tree.

Resolution resolution

Issue Resolution
Make sure the custom object has a lookup or Master-Detail relationship to the Lead, Contact, or Account object.

Also ensure that the lookup field is visible to the Marketo Sync User.

Custom objects must have unique names. Marketo does not support two different custom objects with the same name.

Marketo only supports custom entities that are linked to standard entities one or two levels deep.

SFDC Sync: Custom Object Sync