Getting customers national ID number in checkout experience?

Payments + Shipping & Fulfilment
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Topic summary

A merchant shipping from Canada to international destinations (particularly Spain) is experiencing customs delays because shipments require customers’ National ID Numbers (e.g., DNI for Spain). Nine recent orders have failed customs clearance, with two held until the ID numbers were obtained from customers.

Current Challenge:

  • The shipment broker now requires this information for all future orders
  • Seeking a solution to collect National ID Numbers during checkout rather than through post-purchase email follow-ups, which risk shipment delays if customers don’t respond promptly

Proposed Solutions:

  • One suggestion was using IOSS (Import One-Stop Shop) for EU shipments under 150€ to streamline customs
  • However, this doesn’t apply to the merchant’s situation, as they sell wooden baseball bats with many orders exceeding 150€

Status: The discussion remains open with no definitive solution yet identified for collecting National ID Numbers at checkout.

Summarized with AI on October 28. AI used: claude-sonnet-4-5-20250929.
1

Recently we’ve had 9 international orders fail to pass customs recently due to the fact that the shipments need the customers National ID Number, for instance when shipping to Spain from Canada. We’ve had 2 shipments get held at customs until we get the DNI number from the customer. Our shipment broker says we need this information moving forwards.

Is there a way to get the customer to fill that information in the checkout experience rather than setting some sort of flow to email the customer asking for that information, which possibly delays the shipment if the customer doesn’t see the email?

Are there other more elegant solutions that I’m not thinking about?

Thanks in advance for any advice.

2

Hi KR3LT,

Depending on the value of the orders, you could use IOSS to EU if the value is under 150€. That would at least help with the customs process.

3

Thanks for the idea! Unfortunately we sell wooden baseball bats, A significant portion of our sales are above 150€.