What I want to know is the following:
How many of a particular product did a specific customer buy from me.
OR, how many of a particular product group did a specific customer group buy.
If possible I want to know how much the total value of those purchases were (if selling prices were different).
Is there, with or without the use of an external reporting application, a way of doing this reporting without having to look at all of the invoices one by one?
Thank you in advance.
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