Products will be linked and shown as alternatives automatically if the following are true:
Both products are in the same 3rd level category of a core system category. (no product will be included until moved out of PAC).
Pack size of the products can be compared, example KG to G or ML to LTR.
Must share at least 2 attributes such as Type, Spec, Country, Size and General.
Must share similarities in the description.
Alternatives can also be set by the purchaser, who can manually set product alternatives.