I ran a sql script that migrated a database, it all looked as if it had worked perfectly, but the category Id's had changed. The main website handled this fine

I ran a sql script that migrated a database, it all looked as if it had worked perfectly, but the category Id's had changed. The main website handled this fine but I found out a separate system that sent out daily offers by email proudly advertised Domestos Bleach as the drink of the day.