How to check the duplication value in expenses for invoice number or receipt number/Reference number

Summary:

Business user Requirement Fusion:

The business user while create Expense Item. Duplicate need to check on invoice number or receipt number/Reference number ( if it is duplicate headphone charges should not allow.)
add box invoice number or receipt number/Reference number detect from application.

Is it possible for application to detect the duplicate attachment "invoice number or receipt number/Reference number".

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