Is there a way to get a pop box with a statement on clicking on Save on Create Payables Invoice

Summary:

While Creating an Payables Invoice in Classic UI, there are fields like Invoice Currency and Payment currency, so when user enters the same currencies in both the places then at the time of clicking on the Save button there should be a pop up box with warning statement needs to be appear, once user confirms like ok on the pop box then only the invoice has to be saved. Please let me know if anyone knows a way to do it.

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