By default Vendor name is not available in the standard column of packing slip print, perform the below steps as a work around.
- Create a custom Column field in the Item Fulfillment
- Navigate to Transaction Column fields under Customization > Lists, Records & Fields > New
- Enter a name for the Custom Field, example: VendorName_ItemFulfilment
- Set the type as Free-Form text
- Set the Store Value as True
- Apply the custom field to ‘Item Fulfilment’ and Print on Packing Slip
- Source the List from ‘Item’ and Source From ‘Vendor’ Name
- Click ‘Save’
- The above steps will add a column on the Packing Slip Print.