ContributionsMost RecentMost LikesSolutionsSupplier Card ID Hi We have seutp a Customer with a CardID. They have now become a supplier also. When I tried to add them in in the Cards File section as a supplier (ie Card Type: Supplier), the system won't let me do it. Says that it's already used. I can't see it being used in the Supplier list - only the Customer list. Do Card IDs have to be unique across all Cards - including staff? Thanks. Solved