SOLVED
UPDATE....
So it looks like the possible issue is that our Marketo "installed package" in Salesforce is outdated. If you are having this issue, make sure to check on the version of your Marketo by going to SETUP and clicking INSTALLED PACKAGES. Apparently, by updating Marketo you run the risk of affecting some of the SFDC objects. Our IT department has been hesitant to update the package because of this. I tested the update out in Sandbox and everything went smoothly.
We have had several reps who refuse to use Marketo now, so hopefully IT makes the change soon. Good luck everyone!
So it looks like the possible issue is that our Marketo "installed package" in Salesforce is outdated. If you are having this issue, make sure to check on the version of your Marketo by going to SETUP and clicking INSTALLED PACKAGES. Apparently, by updating Marketo you run the risk of affecting some of the SFDC objects. Our IT department has been hesitant to update the package because of this. I tested the update out in Sandbox and everything went smoothly.
We have had several reps who refuse to use Marketo now, so hopefully IT makes the change soon. Good luck everyone!
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