Change selection policy
The selection policy describes:
• How the material selection input is provided—by you or through the CAD system
• What aPriori does if the provided input is invalid
To change the selection policy
1 In the Production Scenario tab of the Cost Guide, click 
to the right of the Material field. The Material Selection dialog appears.
to the right of the Material field. The Material Selection dialog appears.2 In the Material Composition panel, click Edit Selection Policy. The Composition Selection Mode panel opens.
3 Select:
• MCAD — this is the default source for material selection. If the MCAD choice is not provided or not available for the selected Digital Factory, the Digital Factory default material is selected.
• Digital Factory Default — The default material must be defined for every Digital Factory.
For information on how to define the default material for a Digital Factory, see aPriori Administrator Guide.
• Manual — Material selected manually by you. The Digital Factory default is selected if your specified choice cannot be costed.
4 Click Ok to apply changes, recalculate the cost, and close the Material Selection window, or Apply to apply changes and recalculate the cost without leaving the Material Selection window.
The Material Composition Mode that you select here shows in the Requested field. If the material selected using this mode is invalid for costing, aPriori chooses a different mode according to the selection policy. However, the requested mode remains the same until you change it manually.
For example, if you selected MCAD, but the material specified by the CAD system is unavailable for the selected Digital Factory, the Digital Factory default material will be used for costing. The Requested mode will be MCAD and the Selected mode will be Digital Factory default.