We go to our office and get a warranty schedule that meets one of the following:
1 - We need to see a list of warranty claims paid prior to xx/xx/xx. Where xx/xx/xx is equal to at least 15 days ago, although to be safe we generally make the date 30 days ago. This gives us a buffer to make certain we haven't thrown away something we shouldn't have.
2 - We need to see a list of unpaid warranty claims. We use this list to check ourselves to be sure we have the parts we are supposed to have.
3 - We need a list of all paid warranty claims with the date paid. With this list we can scrap based on the date the office posted the credit. The office cannot post the credit until the day it is received so we cannot scrap too early.
We tried the Global Warranty list but it wasn't for us.
Your office should be able to get you any version of the above (depending on your DMS) and a lot of other various ways to do this. There is no excuse not to give this to you, it is the dealer's money and you are trying to protect it.