You can add a new BOM from the BOMs > View/Import, BOM Information page.
To create a new BOM
1.Click the New 
button.
Note: The New BOM button is only available to users who are granted permission to add a new BOM.
New BOM Creation
A new blank BOM entry form opens. The cell shading in the new form that opens indicates required field information that must be entered before the new BOM can be saved. The PART_NUMBER and Revision fields are required fields.
Auto Number Next PN
2.Manually enter a BOM PN or click the Auto-number 
button to insert an automatically generated part number for your BOM.
3.Manually enter a revision number. This is required field entry.
4.You may optionally enter a variant value if your new BOM has a variant. The variant value entered, however, must match a CIS variant. Leave this field blank if a CIS variant is not used.
Add New BOM
5.Click the button to save the new BOM with all entered information.
As shown in the image below, access to your new BOM, as well as other BOMs, is available from the drop-down list located in the upper right corner of the screen. If desired, you can select a BOM from the drop-list and click the Edit button 
to either enter addition field information or edit an existing value. Click the save button 
to save your modifications.
Added New BOM