To use Printed Simply with Customily for Etsy, the first thing you need to do is to create an account on Printed Simply. If you don't have an account with Printed Simply, you can create one here.

Once you have a Printed Simply account, you will need to add them as a Production Partner on your Etsy shop. Etsy requires stores to disclaim who is fulfilling the products for them. So for Customily to be able to send the orders from Etsy to Printed Simply we need this information to be added to your Etsy account.

Follow these steps to add Printed Simply as a production partner on your Etsy.

1. Sign in to your Etsy account.
2. Go to your Shop Manager, and choose Settings.
3. Select Production partners.
4. Select Add a new production Partner and fill out the following information:
   • - Production partner:  Printed Simply
   • - Location: Orange County, CA
   • - About your partnership: You can simply put "A production partner", or fill in a short description of why you like to work with them if you're feeling inspired.
   • - Production partner:  select the following statements
     "I don't have the technical ability to make it entirely by myself"
     "I design everything myself"
     "They do everything for me"
5. Once done, you can click Show Preview to see how it will appear in your store.
6. Click Save Partner and you are done!

Once you have Printed Simply added as your Production Partner, open your Customily app on Shopify and follow these steps.

1. Head on to Start or Store on the left menu
2. Go to Settings and open the Integrations tab.
3. If you have more than one store on your account, make sure you are changing the setting of the correct store by selecting it from the top left dropdown.
   
4. Select Printed Simply from the Select a provider for integration dropdown
5. Click enable integration
   
6. Paste your Printed Simply API Key (also known as Customer Identifier). Learn where you can find your API Key on Printed Simply here.
   
7. Click Save Settings at the bottom of the page.