As a newbe to GRAMPS - I imported from PAF with no major problems.  However, my source document numbers are (in some cases) a different format than those generated by GRAMPS.  In most cases, there are simply a different number of digits (i.e. S6 rather than S006)

If I change the reference number to the GRAMP format, will the changed number be recognized by GRAMPS and incorporated it its listing? 

Will I affect any other portions of the progam adversly?

I would not like to change numbers and then find out down the road that I have lost data.

Thanks for your help.