Error validating [production_partner_1]: '...'

This error occurs when you enter a non-number value into the production_partner_1 column.

The production_partner_1 is a special number assigned by Etsy. You cannot choose your own production_partner_1, it will be assigned when you create a production partner.

To retrieve your production_partner_id:

• Select your production partners when generating a template
• Find your production_partner_1 on the Shop Page (must be logged in)
• Export your listings from Etsy

production_partner_1 values must be:

• A profile string such as MyProductionPartner (2201237)
• A whole number
• A positive number
• Only uses the characters 0-9

See the Template Docs: production_partners for more details.