No Problem.
You will want to have two fields. One for data entry and one for the formula to calculate the correct value for display purposes.
I suggest try this as a formula.
"PO-" & NotLeft([PO data entry field],"0123456789")
The function for NotLeft is like a Pacman character coming at the data entry field from the Left and discarding everything until it hits any of the values 0123456789. Regardless if your Users enter the PO# perfectly starting with PO-, it will simply discard that and then put it right back in as a prefix.
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Mark Shnier (YQC)
Quick Base Solution Provider
Your Quick Base Coach
http://QuickBaseCoach.com
mark.shnier@gmail.com
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