error create order API: 422

Shopify Discussion

Topic summary

A developer is encountering a 422 “Unprocessable Content” error when attempting to create an order via the Shopify API. The error response indicates “Internal error” without specific details.

Payload details:

  • Creating order for a Japanese customer with Japanese characters in name/address fields
  • Includes customer information, shipping address, and line items
  • ZIP code provided as integer: 17203
  • Email field is empty
  • Phone number in international format (+819011112222)

Current status:

  • The request is syntactically valid but contains semantic errors
  • The specific cause of the error is unclear
  • No responses or solutions have been provided yet
  • The issue remains unresolved and awaiting community assistance
Summarized with AI on November 1. AI used: claude-sonnet-4-5-20250929.
1

I am creating an order using the API, but the response I received is:{
“errors”: {
“base”: [
“Internal error”
]
}
}

with a 422 Unprocessable Content error. This payload

“order”: {
“name”: “2501150117”,
“customer”: {
“first_name”: “服部テスト”,
“last_name”: “服部テスト”,
“phone”: “+819011112222”,
“email”: “”,
“addresses”: [
{
“first_name”: “服部テスト”,
“last_name”: “服部テスト”,
“country”: “Japan”,
“address1”: “テスト町９−９−９”,
“address2”: “テスト町９−９−９”,
“zip”: 17203,
“phone”: “+819011112222”
}
]
},
“line_items”: [
{
“variant_id”: 49567955747112,
“quantity”: 1
}
],
“shipping_address”: {
“first_name”: “服部テスト”,
“last_name”: “服部テスト”,
“country”: “Japan”,
“address1”: “テスト町９−９−９”,
“address2”: “テスト町９−９−９”,
“zip”: 17203,
“phone”: “+819011112222”
}
}

The request was well-formed but had semantic errors. I don’t know what is wrong with my payload. I need help. Thank you!