Configure the design structure generation
Set properties to be copied to a design in the design structure
You can specify additional properties/custom properties to be copied while generating or updating a design structure. Ensure you map these properties on the BOMLine object before design structure generation or update.
To copy properties while generating or updating a design structure, specify the following values in the PMA0_COPY_PROP_PART_TO_DESIGN_GENERATE or PMA0_COPY_PROP_PART_TO_DESIGN_UPDATE preference respectively. For property copy, use the property internal names. For example, to copy name, specify bl_rev_object_name:bl_rev_object_name in the preference.
Note
You can specify multiple values. If a value is invalid, the property is not copied to the design, but the part is aligned with the generated design.
The part properties are not copied to the corresponding design during a manual alignment.
The update preference works only when there is a modification in the structure. Any deletion of property values in the source structure is not copied to the target structure, even if you have specified that property in the preference.
Only following types of properties are copied:
- Supported property types: string, short, integer, logical, double, float, date
- Unsupported property types: type reference, relation
- Exceptions: Properties such as bl_uom and bl_occ_effectivity are supported even though they are type reference properties.
Copy of the Quantity and Variant Formula properties
Summarization on
| Action | Quantity | Variant Formula |
|---|---|---|
| Part to Design (occurrence alignment) — Generate | Not copied but multiple occurrences are created | Copied |
| Part to Design (occurrence alignment) — Update | Not copied but multiple occurrences are created | Copied |
Summarization off
| Action | Quantity | Variant Formula |
|---|---|---|
| Part to Design (occurrence alignment) — Generate | Copied | Copied |
| Part to Design (occurrence alignment) — Update | Copied | Copied |
Copy of the Reference Designator property
To copy the combined Reference Designator property values on summarized line, you need to enable the preference BOM_Enable_Ref_Designator_Value_Packing and specify Reference Designator property in the copy preferences for both generate and update cases.
After the copy, the reference designator values are displayed on the design as shown below in the case of an unpacked design structure:
| Part | Design |
|---|---|
| P_Capacitor*3 (Ref Designator = R1, R2, R3) | D_Capacitor (Ref Designator = R1) |
| D_Capacitor (Ref Designator = R2) | |
| D_Capacitor (Ref Designator = R3) |
Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.dbom_ebom_alignment_admin/xid1929881 · retrieved 2026-07-11