How to control invoice generation untill all lines in sales order in awaiting billing

Summary:

Hi Team,

we have 4 lines in sales order. Two are in awating billing and two in awaiting shipping. If we run AutoimportInvoice program, the invoice will get generate for two lines.

Business wants to control that and they want system to generate only when all lines in awaiting billing, if two lines are in awaiting billing then system should throw error for autoimport invoice program.

Kindly help us on the same.

Thank you

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