If you have just set up your feed it will not instantly pull in any data. If you have no errors then I believe that means the settings are correct. It may take a short while (the guide mentions about 30 minutes) for it to do the check.
The feed will then run overnight and pull in the previous days transactions, but it will not run at the weekend so you may have to wait until it is run on Tuesday morning to see any transactions come in. If there is no data to export then nothing will appear in your account and the feed will not pull in historic data.
It’s all in here, along with a couple of troubleshooting steps.