Yes, you can but this is not recommended at all if you have selected the wrong customer please try to post the reversal entry as a Sales Credit memo or Sales Return order.
Because there are many other tables as well where the customer No and details flow and you might skip them by doing so it may create issues in the future.
some of the tables I know are, the Sales Shipment header, Sales Shipment Line, and Item Ledger Entries, if any taxes are there then the related taxes ledger entries for VAT or GST accordingly.
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