How to establish many to many relationships?
I am developing a Demand Planning model for a school book retailer.
I need to determine the SKU (the book identification) that each school uses (in order to purchase those SKUs for the stores around the school).
However, some schools utilize various SKUs for the same year/subject, resulting in multiple SKUs for the same combination:
How can I establish the relationship between school/grade/subject in Anaplan?
Thank you so much for your assistance.