Steps
Go to Rental order management > Rental invoicing > Project rental credit wizard.
In the Customer/Invoice account field, enter or select a value.
In the Invoice field, enter or select a value.
Click Next.
Click Next.
Click Fetch.
In the Type field, select an option.
In the New price field, enter a number.
In the Reason code field, enter or select a value.
In the Text field, type a value.
Click Add.
Click Next.