This inventory report shows all "Item Numbers" that have fallen below their set "Reorder Point." This report allows our parts manager to walk the aisles and confirm quantities before placing an order. The report uses the "Inventory" table to produce these numbers.
He would find it very helpful if I could display a rolling twelve month count of the number (or quantity) of each item sold. To do this, I'll need to incorporate the "Invoices" table and loop through the table getting a count (over the last twelve months) of the number sold for each Item Number. For example; maybe we sold 14 of Item#1101600030 and 33 of Item#1102400016 and 0 of Item#1102400017 (the first three records below).
I've not encountered a situation like this before (in Crystal). What is the best way to go about getting a count for the number of each item sold...keeping in mind that it cannot change record selection as the report is meant to display items that have fallen below their Reorder Point. For those items, I only wish to display how many of each were sold over the last twelve months.