Published at: 2026-09-17
Manage equipment asset BOMs
Maintain equipment asset BOM hierarchy.
Overview
An equipment asset BOM, or operational bill of materials (OBOM), records equipment and components in a hierarchy. The system maintains the relationships among the root equipment, parent equipment, and child nodes.
Before you begin
- The administrator has enabled this capability in ShareService > System Settings > Device Management > Device Asset BOM. This ability cannot be turned off after it is turned on.
- The root device already exists and the product is associated.
- Equipment ledgers have been established for records that need to be added as subordinate equipment; when product-level components only need to be recorded, product data has been maintained.
- The current account has the permission to view the device and configure OBOM.
Enter OBOM configuration
- Open the details of the root device that needs maintenance.
-
Click Configure OBOM in the upper right corner of the page.
- Find the node that needs to be expanded on the configuration page, click Add Subordinate, and then select Add Subdevice or Add Subproduct.
[!IMPORTANT] OBOM can only be maintained from Configure OBOM on the device details page. You cannot directly create or import data manually in the Equipment Asset BOM object.
Add lower-level devices
- Select Add Sub-Device under the device node.
- Select the child equipment to associate.
- Check the root device and parent device automatically filled in by the system.
- If the device has serial number management enabled, check the serial number automatically brought in by the system.
- Submit records.
The component quantity of the lower-level device is fixed at
1. After submission, the system automatically maintains the hierarchical relationship.Add subordinate products
- Select Add Sub-Product under the device node or product node.
- Select the product to be the part.
- Check the root device and parent device automatically filled in by the system.
- Fill in the quantity according to the serial number management method:
- When serial number management is not enabled for the product, the part quantity can be entered.
- When the product has serial number management enabled, the part quantity is fixed at
1.
- Submit records.
Hierarchy rules
| Current node | Subordinate equipment can be added | Subordinate products can be added | Quantity rules |
|---|---|---|---|
| Root node | Yes | Yes | The root node must be associated with the device, not just the product |
| Device node | Yes | Yes | The number of sub-devices is fixed at 1 |
| Product node | No | Yes | When serial number management is enabled for a sub-product, the quantity is fixed at 1, otherwise the quantity can be entered |
Expected results and validation
- The configuration page shows the correct root equipment, parent equipment, and child nodes.
- The lower-level equipment or products are at the expected level and the quantity complies with the serial number management rules.
- After reopening the device details, the saved structure can still be viewed through Configuration OBOM.
Notes
- The root node must be a device; the product cannot be used as the root node of the entire OBOM.
- The product node cannot add lower-level devices, and can only continue to add lower-level products.
- OBOM objects do not support direct creation or import. Bypassing the device details entry is not a supported maintenance method.
- After serial number management is enabled on the device, selecting the device will automatically bring in the serial number; you should still check whether the correct physical object is associated before submitting.