Prohibit the item number duplicate in the inventory transaction

Summary

Prohibit the item number duplicate in the inventory transaction

Content

Hi,

We came into a scenario that we want to prohibit the item number duplicate in the inventory transaction. example is below:

Inventory miscellaneous transaction:
Line 1: Item: ABC.     Quantity: 50.
Line 2: Item: ABC.     Quantity: 10.
In this case the system should generate an error and should not let the user to submit the transaction.

The correct scenario should be as below:
Inventory miscellaneous transaction:
Line 1: Item: ABC.     Quantity: 60.

Is it possible to accomplish this requirement in in R13 19B.

Thanks