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  1. Printful Help Center
  2. Integrations
  3. WooCommerce

Articles in this section


  • How do I provide shipping tracking information to my customers?
  • Can I add a size guide to my products on WooCommerce?
  • How do I change the language of my WooCommerce storefront/personalization tool?
  • How do I use product personalization for WooCommerce?
  • What are some WooCommerce hosting providers I can use?
  • What do I do if my consumer key is invalid?
  • Why am I getting an invalid API key error in my shopping cart?
  • How do I fix Sync error: Incorrect URL entered?
  • How do I fix Sync error: PHP memory is running low?
  • Can I use live shipping rates when utilizing the sync as you go feature?
  • See more

Why am I getting an invalid API key error in my shopping cart?

If you see an error message that reads ERROR: Invalid API key during checkout, the store key from Printful was entered incorrectly in WooCommerce’s settings.

To find the store key in Printful, click Stores → Edit (next to your store) → API. Copy the key under API Access.

In WooCommerce click WooCommerce → Settings → Integration tab, paste the key into the “Printful store API key” field and click Save.

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  • What should I know about API key to API token migration?
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