We have a 3rd party vendor that is directly integrated to our Marketo, pushing us leads and contacts regularly if they have responded to a marketing campaign. We're finding that the numbers the vendor reports does not match up to the numbers pulled in our Marketo/Salesforce. When I do a Vlookup against the file we're given from the vendor, we see multiple leads/contacts not in Marketo/Salesforce. Our endpoints have are confirmed to be correct. Anyone know what may be causing this?