Linked Account Not Showing Up on Accounts Sheet Pulldown

I linked my ESPP account to Tiller and althought it says it’s linked (it shows the correct balance etc) I noticed there isn’t an account number. Is that normal? Also, when I tried to add it to my account sheet and my investment tracker sheet, it’s also not on those pulldowns. Any suggestions? Is it because when I connected the account it didn’t include an account number?