AX 2012 R2 - SO fully invoiced but still have deducted transactions

Hi all,

My SO has already fully invoiced (1500 pieces), but when I check invoice journal, one invoice line have 2 transactions (1 sold (1500 pieces); 1 deduction (1500 pieces). I don't know how to reverse deducted transaction since my on hand report also deduct 3000 pieces for this SO.

Please help me, since we have an counting inventory by 15th of August.

Regards,

Hoai