isnumber(v) isn't recognising a number

[GaryKennedy]

Hi Alteryx Community,

I am new to Alteryx so apologies if my question is basic.

I want column named "Replacement" to populate with True if there is a number in field "replacement order#" and to populate with False if a letter is in column "replacement order#"

I tried ISnumber[replacement order#] but it is showing 0 for all entries.

One of the numbers I am trying to return as True is is "40116486, 142698960".

I appreciate any help on this.

Regards,

Gary

[GaryKennedy]

solved the last part with an If statement.

If IsNull([Replacement Order#]) then "N"
else [Replacement]
endif