I faced a problem (error) when I create payment endpoint the error is:

"{"detail":"400: {'name': 'COMPLIANCE_VIOLATION', 'message': 'Transaction is declined due to compliance violation.', 'information_link': 'https://developer.paypal.com/docs/api/payments/v1/#error-COMPLIANCE_VIOLATION', 'debug_id': 'cf7fd8c0fd383'}"} "

I searched about this error and I found that it is caused by many reasons such as:

• the currency
• restrictions on the sandbox account
• the value of the order is greater than in the account
  but I checked those reasons then the same error and checked client_ID and client_secret

I use paypalrestsdk library.

I made a static web page that make on it the checkout.

I am from egypt default paypal currency EUR.

I expected to process this payment only to test the feature.

from fastapi import FastAPI, HTTPException, Request, Query
from fastapi.responses import HTMLResponse
import paypalrestsdk
import os
from dotenv import load_dotenv

load_dotenv()  # Load environment variables from .env file

app = FastAPI()

# PayPal configuration
paypalrestsdk.configure({
    "mode": "sandbox",  # or "live" for production
    "client_id": os.getenv("PAYPAL_CLIENT_ID"),
    "client_secret": os.getenv("PAYPAL_CLIENT_SECRET")
})

@app.post("/create-order")
async def create_order(request: Request):
    body = await request.json()
    cart = body.get('cart', [])

    # Summarize cart total amount
    total_amount = sum(item['price'] for item in cart)

    payment = paypalrestsdk.Payment({
        "intent": "sale",
        "payer": {
            "payment_method": "paypal"
        },
        "transactions": [{
            "amount": {
                "total": f"{total_amount:.2f}",
                "currency": "EUR"  # Change currency to EUR
            },
            "description": "This is the payment transaction description."
        }],
        "redirect_urls": {
            "return_url": "http://localhost:8000/execute-payment",
            "cancel_url": "http://localhost:8000/"
        }
    })

    if payment.create():
        for link in payment.links:
            if link.rel == "approval_url":
                approval_url = str(link.href)
                return {"approval_url": approval_url, "paymentID": payment.id}
    else:
        raise HTTPException(status_code=400, detail=payment.error)

@app.get("/execute-payment")
async def execute_payment(paymentId: str = Query(...), PayerID: str = Query(...)):
    try:
        payment = paypalrestsdk.Payment.find(paymentId)

        if payment.execute({"payer_id": PayerID}):
            return {"status": "Payment executed successfully"}
        else:
            error_details = payment.error
            print(f"PayPal Payment Execution Error: {error_details}")
            raise HTTPException(status_code=400, detail=error_details)
    except Exception as e:
        print(f"An error occurred: {e}")
        raise HTTPException(status_code=400, detail=str(e))

@app.post("/paypal/webhook")
async def handle_webhook(request: Request):
    body = await request.json()
    event_type = body.get("event_type")

    if event_type == "PAYMENT.SALE.COMPLETED":
        # Handle payment sale completed event
        pass

    return {"status": "success"}

@app.get("/", response_class=HTMLResponse)
async def read_index():
    with open("static/index.html") as f:
        return HTMLResponse(content=f.read())