Manage BOP > Product assignment > Plant BOP process area planning > Perform process area planning in PERT view
Create external PERT flows for operations
You can create external PERT flows whenever there is dependency between operations from different stations. This allows you to define the sequence of flows between the operations of those stations.
Procedure
If you have not done so already, search for and open an existing work package and navigate to the preferred page—for example, the Process Planning or High Level Planning page.
In the tree view, click Expand to see the contents of the required station. The list of operations is displayed.
Select the operation, click More, and set the operation as Predecessors.
Select the operation from the second station.
Click More and set the operation as Successor. Easy Plan recognizes that the Predecessor and Successor are from different stations and generates an external flow tab below the process tab. A green arrow signifies that the flow has a predecessor, and a red arrow signifies that the flow has external successor.
Select the external flow you want to remove, and then click Remove .
Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid2214895/npm1691085030391 · retrieved 2026-07-11