ACP Instant Checkout | Asva AI

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Flows + UX Patterns

ACP instant checkout enables purchases to complete within a single conversation, without leaving ChatGPT.

Checkout Flow Patterns

Pattern 1: Direct Purchase

User: "I want to buy those running shoes"

ChatGPT:

Calls search_products tool
Finds matching products
Calls initiate_checkout tool
Presents purchase summary
User confirms → Purchase completes

Pattern 2: Comparison Shopping

User: "Show me running shoes under $150"

ChatGPT:

Calls search_products with filters
Presents options to user
User selects → initiate_checkout called
Purchase completes

Pattern 3: Reorder

User: "Reorder my last purchase"

ChatGPT:

Calls get_order_history tool
Retrieves last order
Calls initiate_checkout with saved items
Purchase completes

Failure States

Payment Failure

Scenario: Payment method fails

Handling:

{
  "error": {
    "code": "payment_failed",
    "message": "Payment method declined. Please try another payment method.",
    "retryable": true
  }
}

ChatGPT should:

Inform user of failure
Offer to retry with same method
Suggest alternative payment methods

Inventory Issues

Scenario: Product becomes unavailable

Handling:

{
  "error": {
    "code": "out_of_stock",
    "message": "Product no longer available",
    "alternatives": [
      {
        "id": "prod_456",
        "name": "Similar Product"
      }
    ]
  }
}

ChatGPT should:

Inform user product unavailable
Suggest alternatives if available
Offer to waitlist if applicable

Shipping Problems

Scenario: Shipping address invalid

Handling:

{
  "error": {
    "code": "invalid_address",
    "message": "Shipping address could not be validated",
    "fields": ["zip"]
  }
}

ChatGPT should:

Request address correction
Validate new address
Proceed with checkout

Security Considerations

Authentication

Verify user identity via OpenAI accounts
Authenticate merchant API calls
Use secure token exchange

Payment Security

Never store full payment details
Use tokenized payment methods
Comply with PCI-DSS requirements
Implement fraud detection

Rate Limiting

Limit checkout attempts per user
Monitor for suspicious patterns
Require additional verification when needed

UX Best Practices

1. Clear Purchase Summaries

Always show:

Product details (name, variant, price)
Shipping address
Payment method
Total cost
Estimated delivery

2. Explicit Confirmation

Require clear user consent:

"Confirm purchase?" prompts
"Yes/No" options
No ambiguous language

3. Error Recovery

Provide clear paths to resolve errors:

Retry options
Alternative suggestions
Support contact information

Implementation Checklist

Implement checkout tool for ChatGPT
Handle payment processing securely
Implement error handling for failures
Create clear purchase summaries
Require explicit user confirmation
Handle inventory issues gracefully
Validate shipping addresses
Implement security measures
Test checkout flows thoroughly

Next Steps