On the “Purchasing” page, locate the PO that you would like to change the pricing on and click the ellipses at the right side of the PO then select “Edit Details” 

On the next page, click “Import from CSV” and drop the desired CSV file in the “Drop files” section below 

You can also click on “Browse” to select a file from your computer to upload 

After selecting the file, you can map the fields from the CSV file to the fields of the PO by clicking on the “Unmapped” button and selecting the desired field.

After mapping the fields, click “Next” to complete the upload. 

Click “Save” at the top right-hand corner of the page, and you are all set!