https://www.aras.com/community/f/development/3248/update-itemtype-programmaticallyhi i want to update item type&#160; which is iterated in for loop i write below code for that for(int k=0;k&lt;ir;k++) { string itid= itarray[k].ToString(); Item balItem1 = inn.newItem(&quot;bal_item&quot;,&quot;get&quot;); balItem1.setAttribute(&quot;id&quot;,itid); Item resbalItem1en-USTelligent Community 12https://www.aras.com/community/thread/443?ContentTypeID=1Fri, 12 May 2017 05:34:34 GMT916d3f7e-8ddc-42f8-8d45-380822f51406:f45c7f27-4587-4dc5-822b-686918dd2f7dYoann Maingonyou know that if your itemtype is versionable, using config_id will potentially update every revision. Config_id is the common id to all the revisions of an item.<div style="clear:both;"></div>https://www.aras.com/community/thread/431?ContentTypeID=1Tue, 09 May 2017 00:57:09 GMT916d3f7e-8ddc-42f8-8d45-380822f51406:3d25b62b-a8ac-40cf-9078-d64a2ececafeRi solve this problem by using config_is instead of id in setAtttribute() method<div style="clear:both;"></div>https://www.aras.com/community/thread/422?ContentTypeID=1Mon, 08 May 2017 09:32:46 GMT916d3f7e-8ddc-42f8-8d45-380822f51406:eb58ee46-66fe-4b92-b090-f8d3790090ecYoann MaingonHi, hummm... not sure yet why it may fail. Can you a step by step debug and tell us where it exactly fails? on which line?<div style="clear:both;"></div>