https://www.aras.com/community/f/development/3767/add-boms-items-as-itemtypesHello I want to&#160; add the BOMs Items of Parts as Itemtypes i can do that for each item by applying this AML: &lt;AML&gt; &lt;Item type=&quot;ItemType&quot; action = &quot;merge&quot; where = &quot;ItemType.name = &#39;Gear&#39;&quot;&gt; &lt;name&gt;Gear&lt;/name&gt; &lt;Relationships&gt; &lt;Item type=&quot;Property&quot; actionja-JPTelligent Community 12https://www.aras.com/community/thread/1762?ContentTypeID=1Mon, 02 Jul 2018 14:26:13 GMT916d3f7e-8ddc-42f8-8d45-380822f51406:0ddf1075-0154-4e2e-86a6-c9770ee5362bFormer MemberHello i just wanted to try somthing but you are right.. thank you so much for your replay... &nbsp;<div style="clear:both;"></div>https://www.aras.com/community/thread/1761?ContentTypeID=1Mon, 02 Jul 2018 10:11:46 GMT916d3f7e-8ddc-42f8-8d45-380822f51406:772ad95b-8837-4e7d-9078-0e52cfa88fe0Christopher GillisHello, Is there a particular reason that you&#39;re storing this data as an ItemType rather than simply in the Part BOM relationship? Storing this in the Part BOM relationship will be far more efficient than creating an ItemType since a lot of excess data is created in the background when a new ItemType is added. If there is any data that&#39;s not being represented in the current data model, you can add additional properties directly to the Part or Part BOM ItemTypes or, if you are using 11.0 SP12, you can take advantage of the Extended Classification functionality which you can see a demo of <a href="https://www.aras.com/plm-software/?n=Aras-Innovator-Demo-Series-Leveraging-Product-Data-Reuse">here</a>. Chris <hr /> Christopher Gillis Aras Labs Software Engineer<div style="clear:both;"></div>