VPEs have some special Access Control requirements. If you do not have Read access to a VPE, it is like it does not exist. If you have just Read access to a VPE, you can view it, but you cannot cost a part against it. To be able to cost parts against a VPE you must have both Read and Cost Using permissions (Cost Using is a special permission implemented specifically for VPEs).

To cost a component against a specific VPE, you must have Read + Cost Using permissions for that VPE.

This means that if your component uses multiple VPEs for different routings, you must have these permissions for every VPE.

Note that if you do not have Read + Cost Using permissions for a VPE, it will not appear as an option in the Virtual Production Environment Selection dialog.

Deep Costing and Cost All Scenarios are the same as basic component costing except that you must have Read + Cost Using permissions for all VPEs covering all scenarios and child components. These operations follow the "Keep going & notify" principle (see the next section, "Access Control Principles").

Cost Using is not necessary to specify a VPE for the Material Catalog; only Read permission is required.

Overlay VPEs are created from one or more VPEs to which they maintain a link, so that that updates to the parents ("antecedents") get passed on to the child. This is a somewhat advanced topic which is covered in the aPriori VPE Administrator Guide.

If your site makes use of overlay VPEs:

To use the VPE Manager window, you must have Read permission to a VPE to open and view it.

To edit and delete a VPE, you must have Update and Delete permissions to it. You must also be a VPE Administrator (the same as when Access Control is not in effect).

To view an existing, costed component, you do not need VPE access. However, any VPE to which you do not have access that appears in the Manufacturing Process pane is displayed with a "strikethrough" name (similar to a deleted VPE).