Please make sure that you have GarageSale 6.9.7 or higher installed.
The “Barcode” field is located in the “Options” Inpsector!
Please update the eBay category data. To do so open the GarageSale preferences and update the categories in the Categories tab.
Choose ‘Download Anyway’ if GS tells you the categories are already up-to-date!
(Make sure the correct eBay site is selected in the GarageSale preferences>General.)
Leaving the barcode field empty should be accepted by eBay, too. It’s important that you (force)update the eBay categories first (see step 1).
Please note: If you’re using the variations feature you should consider to upgrdae to GarageSale 7. It supports barcodes (or leaving them empty) on the variations level, too.
Tried option 1 and 2 but still no joy.
Have since updated my Mac to latest version also so gonna try again.
If it still doesn’t work I’ll try the upgrade.