Purchase credits are generated through Vendor Returns, to raise a purchase credit from Avail. Lines: 


Select InvoicingPurchase Credits then select Avail. Lines. Search for the relevant vendor and use the search criteria to find the relevant items to credit and hit Search


Once the results are returned, highlight the lines and select All Lines or if if you wish to create a blank credit select No Lines. You will need check the invoice to ensure all the details are correct, if you have selected ‘No Lines’ you will be able to add lines from Additional Items in the Header tab. 


Once you have checked this, select Complete