I take it you are trying to [url http://docs.oracle.com/cd/E15586_01/fusionapps.1111/e16691/ext_nm.htm]customize the Navigator Menu ? For debugging:
<li>Does "After editing the new item node with above values, new items not reflected in navigator" mean that without the properties set the item node is displayed under the "Payables" group and once you set the values it disappears ?
<li>If you update the menu item to point to external site (e.g. "www.oracle.com") instead of the custom application, does it work ?
<li>If you copy the property values from an existing entry that works to the new item does the new item work ?
<li>If you use the values in your step 3. but replace the "Secured Resource Name" with a value from an existing working entry does the new item work ?
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After restart the managed server the issue is resolved also changed the below value in navigation because I put the model and viewcontroller ADF library jar file in corresponding payables exploded directory.
Focus View ID-/CustomInvoicesSearch (Main view id in unbounded taskflow)