SubTract String

[PMKNjuice]

I’m trying to subtract the last string letter used
i can only add tho???

i was wondering if anyone could help with this

[Keith_1357]

You can use SubStr(text in quotes or a string variable, start position, length)
The first character is in position zero so the following would give you “1234”

If you click on the expression then it will show more information.

Or you can click the purple expression builder on the right and fill in the boxes.