how to create bom in dynamics 4.0?
You can create different versions of a BOM that you have already created. You can then attach the BOM to one or more items. Click Inventory management > Bills of materials. Click CTRL+N to create a new BOM. Enter information to identify the BOM. Click Lines to open the BOM line form. Select the item number, and enter the quantity to create additional BOM lines. These additional lines are the component items that comprise the BOM. Close the form. Click Approve to open the Approve bill of materials dialog box. Select the employee name, and then click OK. To create another version of the new BOM, click CTRL+N in the Versions grid to create a new line. Select the relevant item number, and enter dates in the From date and To date fields to control the validity period of the BOM version. Use the From qty. field to set a minimum item quantity for using the BOM version. Click Approve to approve the BOM version. Select the Active check box to make the BOM version active. for more info please have a look at thi http://msdn.microsoft.com/en-us/library/aa550709(v=ax.10).aspx
Navigate to Inventory management\Common\Item details.
Click CTRL+N and choose Item type= BOM. Supply the other fields and click OK. Once you create BOM, you can define the raw material in BOM=> Lines.