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Creating aggregate occurrences and defining quantity

Creating aggregate occurrence is a technique that allows you to define a single occurrence to represent a number of components, for example, 50 cable ties. Using aggregate occurrences reduces the amount of data stored in the database and the size of the displayed structure. You can only create an aggregate occurrence from components with no units of measure and not from components that require a quantity value, for example, 1.5 liters of oil. Structure Manager does not differentiate between these component types and a numerical value is shown in the Quantity column in each case.

Note Aggregate occurrences cannot have separate attributes such as notes or positional information associated with any individual component. If this is necessary, use individual occurrences and pack the lines to simplify the display.

Source: https://docs.sw.siemens.com/documentation/external/PL20251212545240207/en-US/tc_help/pse/xwp1737253321731/pvt1737253326011/bps_agg_occur.html · retrieved Sat Jul 11 2026 00:00:00 GMT+0000 (Coordinated Universal Time)