Part 9: SKU Incompatibilities, Graph Coloring & Open Policy Agent (OPA)
← Previous Chapter: Part 8: Intelligent Order Release | Series Hub | Next Chapter: Part 10: Warehouse Picker Routing Optimization → Prerequisite: Graph theory fundamentals (chromatic number, vertex coloring, conflict graphs), declarative policy languages (Rego / OPA), and regulatory logistics compliance. Answer-first: Handling complex physical and regulatory SKU incompatibilities during order fulfillment requires combining formal graph theory with declarative policy engines. Representing co-packaging conflicts as undirected graphs solved via the DSATUR vertex coloring algorithm, integrated with Open Policy Agent Rego rules, guarantees zero hazardous material co-location, strict cold-chain compliance, and minimal carton usage within sub-12ms execution budgets. ...