Its a glitch in the programming, just enter any 10 digit number and move on....I saw someone say they were inserting Intuits phone number in that spot LOL I saw someone else say they just entered a blank space and the error disappeared as well
The program requires it and likely will in future years. I do a quick google search for the payer. If I get a hit, I put it in. If not I put in my number, the client number or 800-867-5309 For Jenny https://en.wikipedia.org/wiki/867-5309/Jenny
I think we all know that it is very unlikely IRS will call, but they apparently told the software companies to require it.