| Assembly | TOP_LEVEL_PART_NUMBER, TOP_LEVEL_REVISION | The top-level assembly this row rolls up to. |
| Parent Assembly | PARENT_ASSEMBLY | The immediate parent assembly of the part in the BOM hierarchy. |
| Parent Rev | PARENT_REVISION | The revision of the parent assembly. |
| Parent mBOM Version | PARENT_MBOM_VERSION | The mBOM version of the parent assembly. |
| Part | PART_NUMBER | The part required at this BOM position. |
| Part Tree | PART_TREE | The full BOM path from the top-level assembly down to this part. |
| BOM Rev | BOM_REVISION | The revision of the part as specified in the BOM. |
| Inv Rev | INVENTORY_REVISION | The revision of the available inventory for this part. |
| Rev Match | BOM_REVISION_MATCH | Whether the inventory revision matches the BOM revision. A Cross-Rev result means the inventory cannot be used to fulfill this requirement. |
| Description | DESCRIPTION | The part description from the part library. |
| Sourcing | SOURCING_STRATEGY | How the part is sourced: buy (purchased) or make (manufactured in-house). |
| mBOM Qty | MBOM_QUANTITY | The quantity of this part specified in the mBOM. |
| Qty Required | TOTAL_REQ_QUANTITY | The total quantity required across all demand for this part in the current assembly context. |
| Qty Available | QUANTITY_AVAILABLE | Quantity in inventory with status Available. |
| Qty On Order | QUANTITY_ON_ORDER | Quantity on open purchase orders, not yet received. |
| Shortage | SHORTAGE_QTY | The quantity shortfall: TOTAL_REQ_QUANTITY − QUANTITY_AVAILABLE when availability is insufficient, otherwise zero. |
| Material Cost | TOTAL_MATERIAL_COST | Total cost of the required quantity at the part’s unit cost. |
| Shortage Cost | SHORTAGE_COST | Cost value of the shortage quantity. |
| Readiness | READINESS_PCT | The percentage of the assembly’s total required quantity covered by available inventory. Calculated as the sum of fulfillable quantities across all parts divided by the total required quantity across all parts. For example, if an assembly requires 7 total units across four parts and 4 units are available, readiness is 57%. |
| Max Builds | MAX_BUILDS_FROM_AVAILABLE | QUANTITY_AVAILABLE / TOTAL_REQ_QUANTITY. The number of times this part’s requirement can be met from available inventory. The assembly-level maximum builds is the minimum of this value across all parts. |
| Level | LEVEL | The BOM level of this part (0 = top-level assembly). |
| Short | IS_SHORT | Whether this part has insufficient available inventory to meet its required quantity. |
| Subs | HAS_SUBSTITUTES, SUBSTITUTE_COUNT | Whether approved substitutes exist for this part, and how many. |
| Unit Cost | UNIT_COST | The unit cost of the part from the part library. |
| Procedures | PROCEDURES | Procedures linked to this part in the part library. Expand the cell to see procedure name, version, and status. |
| Suppliers | SUPPLIERS | Supplier records linked to this part. Expand the cell to see supplier name, supplier part number, and cost. |