Invoice number once cancelled, should be available to use to book correct invoice

Summary:

User has prepared a Standard invoice in the system and has validated and accounted the same. Upon checking, user has found that some invoice information is incorrect and he has to cancel the invoice. Since the invoice number for payables invoice is provided by the suppliers, User should get the option to amend the invoice number in such case.

Due to Duplicate invoice check validation in the Oracle, it does not allow to enter the same invoice number in the system again.

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