Zarrar fc03a0463c [Fix] Validate items for saleable, purchaseable or subcontractable in transactions (#14316)
* validate items to see if they are saleable

* check if items are subcontractable or saleable

* improvise name,error message and code
Validate type function validates item if they are of proper type for that transaction and throws descriptive error.
2018-06-04 12:52:52 +05:30
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