You can deal with the Quicken error code ol-393-a effectively only after knowing the actual reason that triggered the error. It could occur due to entering an inaccurate Quicken account information, server error, etc. The best part is the problem can be easily solved using some basic instructions as given below.
1. First of all, you should validate your account information. Go to tools, click account list and run down the entire data and verify it.
2. Once the account information is validated, you must unhide the hidden accounts. To do it, visit each account, tap on them one-by-one and uncheck the hidden accounts.
3. After that, you should verify the online services by opening the account list and clicking on the online services tab.