3824029 - Error: "This field should be an e-mail address in the format "user@example.com"?

I'm creating a funding account and need to enter primary and secondary contact details. Our email address ends with .solutions instead of .com and when we add .solutions, the Concur site rejects the email address and gives an error message.

How do I resolve the error "This field should be an e-mail address in the format "user@example.com"? , KBA , CON-EXP-ADM-ADF , Add Funding Account , Problem