1. Pull inventory from each warehouse. WMS export, 3PL portal, or ERP feed per location.
2. Standardize the SKU and quantity fields. One row per SKU per warehouse with the same column structure.
3. Sum to a total available position. SKU-level rollup across every warehouse.
4. Compare against the reorder point. Reorder points live in the ERP or a reference table.
5. Output the table. Full consolidated inventory plus a flagged view of SKUs below reorder.