A little rant here:
It seems like GM is doing a lot of substituting one part for another lately, rather than just changing to the other number. Today's example:
"PART NO 13503677 FILTER IS A GOOD AND CURRENT PART NUMBER. UNTIL AVAILABLE, USE PART NO 13271191. PARTECH CAN NOT ASSIST WITH ORDERING OR AVAILABILITY."
Since 13503677 is a "GOOD AND CURRENT PART NUMBER", I can't just do a # change on our DMS. So, I have cancel the order for the 13503677, add a line for the 13271191, then try to explain it to all concerned. Then the next time someone need this filter, they'll order a 13503677 and I can repeat this process.
Not really a big deal I guess, just a PITA.