What is All-commodity Volume?

Legal Definition
All-commodity volume or ACV represents the total annual sales volume of retailers that can be aggregated from individual store-level up to larger geographical sets. This measure is a ratio, and so is typically measured as a percentage (or on a scale from 0 to 100).

The total dollar sales that go into ACV include the entire store inventory sales, rather than sales for a specific category of products – hence the term "all commodity volume."

ACV is best related to the key marketing concept of placement (Distribution). Distribution metrics quantify the availability of products sold through retailers, usually as a percentage of all potential outlets. Often, outlets are weighted by their share of category sales or "all-commodity" sales. For marketers who sell through resellers, distribution metrics reveal a brand's percentage of market access. Balancing a firm's efforts in "push" (building and maintaining reseller and distribution support) and "pull" (generating customer demand) is an ongoing strategic concern for marketers.
-- Wikipedia