Using the UPC Browser:
This tool will allow you to add multiple items to the Browser so you can work on them as a group, rather than one at a time.
Open SMSPro
Click Custom
Select UPC Browser
Using the Input Boxes option, start by adding the UPCs to the grid one at a time, order does not matter, and not found items will not be added they will be ignored.
Once all UPCs have been added in the grid, click Show in browser, this will move those items to your browser.
Click Clear all to remove UPCs and clear the grid.
Using the Text Box option:
If you are working from a text document, you can use this to paste a chunk of UPCs into the box, then click Show in browser, this will move those items to your browser.