Define critical length and width differences
If any change to a production control item is greater than the inventory record linked to the production control item, the change is automatically considered critical and will break the link to the inventory item. If the change is less than the linked inventory record, you can allow the link to the inventory item to remain up to the critical length and width differences that you set in the Purchasing Standards dialog box.
- Click the Maintenance ribbon tab.
- On the menu, select .
- In the Purchasing Standards dialog box, enter the maximum acceptable width and length differences.
- Click Save.
The maximum acceptable width and length differences are saved. These values are used in two types of situations:
Example 1: Comparing two bills of materials
At the beginning of a project, the steel detailer may send an advanced bill of materials to be imported to the Combining module. The materials in the bill of materials are then combined and purchased.
Later in the project, when the bill of materials is imported from the shop detail drawings to Production Control, you can compare the two lists for material differences. Tekla EPM will use the maximum values defined in the Purchasing Standards dialog box to recognize critical differences, and highlight them in red.
Example 2: Automatic linking of materials
When importing a revised bill of materials into an existing Production Control job, Tekla EPM uses the maximum values defined in the Purchasing Standards dialog box to determine which materials can be linked automatically. Tekla EPM stops the automatic process of linking materials if the differences exceed the maximum values.
Tekla EPM then alerts you that there are changes that have switched off the automatic linking of materials, so that the you can manually review the affected purchased items and make adjustments accordingly.