A standard field in Salesforce is syncing to Marketo, and the field is not present in SFDC Field Level Security to hide from the Sync Integration User.
It is not possible to hide certain standard fields from the sync. Standard fields in Salesforce are critical to the integration. If a standard field becomes hidden from the Sync User then we may see sync errors interrupting the sync.
Who This Solution Applies To
Clients integrated with SFDC