Supplier credit note

To generate a negative receipt transaction to match to the credit note, we typically enter quantity to inspect on the receipt and then register inspection results against the receipt. then we set the parts to be returned or scrapped and select the receipt return type to be “For credit”.

This creates a negative receipt transaction to match against the invoice. 

Hello,

If credit note received is related to quantity adjustment, the correct process is as @Ieva Rituma explained. 
Credit note usually follows invoice, and it should correct the way invoice has been matched with PO. 
In case credit note is received due to price reduction, and received quantity remains same, there is an other matching option in the invoice: “Price adjustment purchase”. This option allows you to adjust invoiced value of receipt invoiced already, without affecting quantity invoiced, just changing invoiced price or additional costs. 
In general, credit note received from supplier must be finally posted in the similar way as regular invoice.