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Configure the engineering BOM generation > Set properties and relations to be copied to a part in an engineering BOM

Copying of the quantity, variant formula, and UOM properties

Quantity, variant formula and UOM are copied by default, without requiring any preference settings.

Summarization on

Action Quantity (On screen value can be a logical combination of input values) Variant Formula (On screen value can be a logical combination of input values) UOM
Design to Part (occurrence alignment) — Generate Summarized and copied Summarized and copied Copied during the creation of a new part occurrence even if not specified in the preference value.
Design to Part (occurrence alignment) — Update Summarized and copied. Even though it is specified for copy, you can skip it. Summarized and copied. Even though it is specified for copy, you can skip it. Copied during the creation of a new part occurrence even if not specified in the preference value.

Summarization off

Performed action Quantity (On screen value can be a logical combination of input values) Variant Formula (On screen value can be a logical combination of input values) UOM
Design to Part (occurrence alignment) — Generate Copied Copied Copied during the creation of a new part occurrence even if not specified in the preference value.
Design to Part (occurrence alignment) — Update Copied. Even though it is specified for copy, you can skip it. Copied. Even though it is specified for copy, you can skip it. Copied during the creation of a new part occurrence even if not specified in the preference value.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.dbom_ebom_alignment_admin/lij2444634094841 · retrieved 2026-07-11