MFG. CODE on old source

I'm trying to find out what happens if I change the MFG CODE on two sources. We haven't used this vendor is 5 years and no longer have their price tape.
I'm cleaning up one of our dealers and trying to consolidate some sources into just a couple of order pads. since the mfg. codes need to be the same for the order pad I was just going to change the source setup.
will this do anything bad by just change this code??
I'm cleaning up one of our dealers and trying to consolidate some sources into just a couple of order pads. since the mfg. codes need to be the same for the order pad I was just going to change the source setup.
will this do anything bad by just change this code??