PURCHASE ORDER NUMBER CHARACTERS

PURCHASE ORDER NUMBER CHARACTERS

In our purchase order system, purchase order number entry only occomodates a 9 character entry. We began adding our initials to the end of our purchase order numbers for better tracing, this would make it 11 characters. We would to make it 12. The reason for 12 is in case there is an error by adding an extra character. Currently, if you enter more than 9 characters in the p.o. field, you will get booted out of Softbase completely. So, is it possible to extend the purchase order number field to 12 characters ?