In the Information System, I found that I had to remove the extra 4 digits from the zip code on the Company address and make sure there were no punctuation marks, such as periods or commas. The # sign is also a problem in both the Company address and the recipients addresses.  You can use Ste or Apt or Unit or PMB. Don't put a period after St. Also it is requiring the email address and, of course, the phone number of the Company. We had a couple of long-time clients where these were not entered. After all of these fixes, I have been able to create an electronic file for all the clients so far and upload them onto the IRS Fire System. I haven't finished setting up the IRIS yet to upload through it.