Multi-level bill of materials
This report expands an item's BOM level by level together with its subassemblies, shows which products an item goes into, and produces a material/activity cost estimate. The report does not write anything; the calculation is the same as the planned order explosion. The Çok Seviyeli Göster (Show Multi-Level) link in the BOM details also opens this screen.
Screen/erp/manufacturing/bom-structureerp-manufacturing-boms.view (patlatma ve kullanım yerleri) · erp-inventory-costs.view (Maliyet Tahmini sekmesi)The three tabs work with a shared Kart (Item) and Tarih (Date) value:
- Kart (Item) — an item with a published BOM (for where-used: an item that appears in a published BOM).
- Tarih (Date) — the day of the effective structure; blank = today. At every level, the revision effective on that date of the production alternatives is used (a revision published with a change number for a future date is not visible until that day).
- Miktar (Quantity) — in the item's base unit; blank = 1.
Multi-Level Explosion
- 1Tabs — explosion, where-used, cost
- 2Date — structure effective that day
- 3Quantity to explode
- 4Expand all levels
- 5Node status — expanded, lowest level…
The header shows a summary of the selected structure (e.g. 1 ADET MAM-0004 · Alt. 1 · Rev. 1 · 10 düğüm · 02.11.2026 tarihli yapı — 1 piece MAM-0004 · Alt. 1 · Rev. 1 · 10 nodes · structure as of 02.11.2026). Quantities are calculated
the same way as for a planned order: scale × scrap; a line with scrap is rounded up to the precision of the unit; the
alternative is selected by lot size.
Views:
| View | Content |
|---|---|
| Girintili (Indented) | Tree structure. Columns Kalem (Item; e.g. 3.1), Malzeme (Material), Miktar (Quantity), Fire (Scrap), Durum (Status). Lower levels open with Tümünü Aç / Tümünü Kapat (Expand All / Collapse All) or the arrow on the row. |
| Özet (Summary) | The total of the same material across all levels: Malzeme (Material), Toplam Miktar (Total Quantity), Geçtiği Yer (Used In), Seviye (Level; Ara seviye (Intermediate level) or En alt seviye (Lowest level)). Yalnız en alt seviye (Lowest level only) filters the materials to be purchased. |
Values of the Durum (Status) column:
| Status | Meaning |
|---|---|
| Altı açıldı (Exploded) | The item has a published BOM; its components are below it (with Rev. · Alt. next to it). |
| En alt seviye (Lowest level) | An item that is not produced — it is procured. |
| Ağaç yok (No BOM) | A produced item without a published BOM — MRP cannot explode this item. |
| Yapılandırılabilir (Configurable) | Its BOM cannot be resolved without a configuration; it appears on an order opened from a configured line. |
| Birim çevrimi eksik (Unit conversion missing) | A conversion between the units of the item and the BOM (or component) is missing — it could not be exploded. |
| Döngü (Loop) | The item appears in its own parent chain — it was not exploded. |
| Açılmadı (Not exploded) | Level or node limit — it was not exploded. |
| Parti büyüklüğüne uyan alternatif yok (No alternative matching the lot size) | The item has a production BOM, but no alternative covers this quantity; adjust the ranges of the alternatives. |
| O tarihte geçerli revizyon yok (No valid revision on that date) | An alternative matching the range exists, but it has no revision whose validity has started on this date. |
A configurable item itself is not exploded: a super BOM can only be resolved with a configuration. To test with values, use Yapılandırarak Dene (Try by Configuring) in the BOM revision (Try by configuring).
Where-Used
The BOMs in which the item is used as a component or alternative, as an upward chain.
- 1Where-Used tab
- 2BOM that uses the item
- 3End products of the chain
| Column | Meaning |
|---|---|
| Seviye (Level) | Position in the chain; the row arrow opens the upper levels. |
| Üst Kart (ağacın çıktısı) (Parent Item, output of the BOM) | The output of the BOM that uses the item. |
| Revizyon (Revision) | The effective revision of that BOM. |
| Miktar (Quantity) | Per base quantity of the parent item. |
| Not (Note) | Son ürün (End product; top of the chain), Döngü (Loop), Açılmadı (Not exploded). |
The list shows only published production BOMs (all alternatives). The "Kullanıldığı Yerler" (Where-Used) tab of the product master record also shows drafts and the engineering BOM. To replace an item in all BOMs: BOM component management.
Cost Estimate
Visible only to users with the cost view permission. Estimates the unit cost using the item's effective revision and routing:
- Malzeme (Material) — the stock valuation of each component (standard if it has a standard price, otherwise moving average); for subassemblies, the total of the components (Toplandı, Rolled up). An item without a value shows Bilinmiyor (Unknown) and is not counted as zero; if there is an unknown value below it, the total is Eksik (Incomplete).
- Faaliyet (hazırlık · makine · işçilik) (Activity — setup · machine · labor) — the Operasyonlar (faaliyet) (Operations, activity) table: Op., İş Merkezi (Work Center), durations and the amount from the work center's activity rates. A work center without a rate shows Tarife yok (No rate).
- Genel gider (Overhead) — the overhead percentage in the rate.
The estimate does not create an accounting entry.