Hi Deepak

First step: You can use one of the grouping on the inventory part and all parts you want to restrict for specific users you can define a group. I dont know which one, you can choose one which suits your config.

Second step: I suggest you to create a permisson set and assign to users who “can” create shop orders to all parts

Third Step: Create an event action to shop_ord_tab and raise an error if part_no has defined grouping and fnd_user does not have the permission set you defined.

I think with doing this way; you can have some parametric configuration.

I hope this helps.

regards

servet