Error: Invalid [listing_id] should be an int value. Template has this: '...'

This error occurs when you enter a non-number value into the listing_id column.

The listing_id is a special number assigned by Etsy. You cannot choose your own listing_id, it will be assigned when a listing is created. To retrieve your listing_id, export your listing.

listing_id values must be:

• A whole number
• A positive number
• Only uses the characters 0-9

See the Template Docs: listing_id for more details.