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Please try again.\",\n Toast.LENGTH_SHORT\n ).show()\n }\n }\n ),\n \n paypal = DropInPaypalConfig(\n // Funding sources to display\n fundingSources = listOf(\n PaypalFundingSources.PAYPAL,\n PaypalFundingSources.PAYLATER\n ),\n \n // Enable one-click payment for returning users\n enableOneClickPayment = true,\n \n // Locale for PayPal button and checkout experience\n locale = \"en_GB\",\n \n // Payee email address\n payeeEmailAddress = \"merchant@example.com\",\n \n // Payment description shown to buyer\n paymentDescription = \"Purchase from Demo Store\",\n \n // Buyer's country code\n buyerCountry = \"GB\",\n \n // Show/hide consent checkbox for saving the payment method\n consentComponent = true,\n \n // Shipping preference\n shippingPreference = ShippingPreference.GET_FROM_FILE // or NO_SHIPPING or SET_PROVIDED_ADDRESS\n )\n)\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"paypal-requirements","__idx":8},"children":["PayPal requirements"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["PayPal requires the following to function correctly:"]},{"$$mdtype":"Tag","name":"ul","attributes":{},"children":[{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Android compatibility"]},": Android 8.0 (API level 26) or higher."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Internet connection"]},": Active internet connection required for PayPal web view."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Customer setup"]},": The customer must have a PayPal account (created during checkout if needed)."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["HTTPS"]},": Your backend endpoints must be served over HTTPS."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Unity Portal configuration"]},": PayPal must be enabled and configured in the Unity Portal."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Entry type"]},": PayPal only supports ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["entryType: Ecom"]},"."]}]},{"$$mdtype":"Tag","name":"Admonition","attributes":{"type":"info"},"children":[{"$$mdtype":"Tag","name":"p","attributes":{},"children":["One-click payments require the buyer to have previously authorised your merchant account. 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com.pxp.checkout.models.DropInTransactionIntentData\nimport com.pxp.checkout.models.DropInPayPalIntentType\nimport com.pxp.checkout.models.Environment\nimport com.pxp.checkout.models.EntryType\nimport com.pxp.checkout.models.IntentType\nimport com.pxp.checkout.checkoutdropin.types.DropInSubmitResult\nimport com.pxp.checkout.exceptions.BaseSdkException\n\n@Composable\nfun CheckoutScreen() {\n val context = LocalContext.current\n var sessionData by remember { mutableStateOf(null) }\n var checkoutDropInComponent by remember { mutableStateOf(null) }\n var isLoading by remember { mutableStateOf(true) }\n \n // Fetch session from backend (with PayPal enabled)\n LaunchedEffect(Unit) {\n try {\n val response = apiClient.post(\"/api/create-session\") {\n contentType(ContentType.Application.Json)\n }\n \n if (response.status.value == 200) {\n val result = response.body()\n if (result.success && result.data != null) {\n sessionData = result.data\n } else {\n Log.e(\"Checkout\", \"Failed to create session: ${result.error}\")\n }\n }\n } catch (e: Exception) {\n Log.e(\"Checkout\", \"Error creating session\", e)\n } finally {\n isLoading = false\n }\n }\n \n // Initialize Drop-in once session is loaded\n LaunchedEffect(sessionData) {\n sessionData?.let { session ->\n val checkoutDropIn = CheckoutDropIn.initialize(\n context = context,\n config = CheckoutDropInConfig(\n environment = Environment.TEST,\n session = session,\n ownerType = \"MerchantGroup\",\n ownerId = \"MERCHANT-1\",\n transactionData = DropInTransactionData(\n currency = \"GBP\",\n amount = 99.99,\n entryType = EntryType.Ecom,\n intent = DropInTransactionIntentData(\n card = IntentType.Authorisation,\n paypalDropInIntent = DropInPayPalIntentType.Purchase // Choose Purchase or Authorisation\n ),\n merchant = \"Demo Store\",\n merchantTransactionId = { UUID.randomUUID().toString() },\n merchantTransactionDate = { Instant.now().toString() }\n ),\n onGetShopper = {\n Shopper(id = \"shopper-123\")\n },\n onSuccess = { result: DropInSubmitResult ->\n Log.d(\"Checkout\", \"PayPal payment successful!\")\n Log.d(\"Checkout\", \"System transaction ID: ${result.systemTransactionId}\")\n Log.d(\"Checkout\", \"Payment method: ${result.paymentMethod}\") // Will be \"Paypal\"\n \n // CRITICAL: Verify on backend\n coroutineScope.launch {\n verifyPaymentOnBackend(result)\n }\n },\n onError = { error: BaseSdkException ->\n Log.e(\"Checkout\", \"PayPal payment failed\", error)\n Toast.makeText(\n context,\n \"Payment failed: ${error.message}\",\n Toast.LENGTH_LONG\n ).show()\n }\n )\n )\n checkoutDropInComponent = checkoutDropIn.create()\n }\n }\n \n // Render Drop-in\n if (isLoading) {\n CircularProgressIndicator()\n } else {\n checkoutDropInComponent?.Content(modifier = Modifier.fillMaxWidth())\n }\n}\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"session-configuration-backend","__idx":10},"children":["Session configuration 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com.pxp.checkout.models.EntryType\nimport com.pxp.checkout.models.IntentType\n\ntransactionData = DropInTransactionData(\n currency = \"GBP\",\n amount = 99.99,\n entryType = EntryType.Ecom,\n intent = DropInTransactionIntentData(\n card = IntentType.Authorisation,\n paypalDropInIntent = DropInPayPalIntentType.Purchase // Pay Now flow\n ),\n merchant = \"Demo Store\",\n merchantTransactionId = { UUID.randomUUID().toString() },\n merchantTransactionDate = { Instant.now().toString() }\n)\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Use this flow for:"]},{"$$mdtype":"Tag","name":"ul","attributes":{},"children":[{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Digital products"]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Simple orders with immediate 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paypalDropInIntent = DropInPayPalIntentType.Authorisation // Confirm Payment flow\n ),\n merchant = \"Demo Store\",\n merchantTransactionId = { UUID.randomUUID().toString() },\n merchantTransactionDate = { Instant.now().toString() }\n)\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Use this flow for:"]},{"$$mdtype":"Tag","name":"ul","attributes":{},"children":[{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Physical products (capture on shipment)"]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Inventory validation needed"]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Final amount may change (shipping, taxes)"]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Complex order workflows"]}]}]}]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":2,"id":"handling-responses","__idx":12},"children":["Handling responses"]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"paypal-callback-data","__idx":13},"children":["PayPal callback data"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["When a PayPal payment succeeds, your ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["onSuccess"]}," callback receives the same standard result as other payment methods:"]},{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"kotlin","header":{"controls":{"copy":{}}},"source":"onSuccess = { result: DropInSubmitResult ->\n Log.d(\"Checkout\", \"Payment details:\")\n Log.d(\"Checkout\", \"- System transaction ID: ${result.systemTransactionId}\")\n Log.d(\"Checkout\", \"- Merchant transaction ID: ${result.merchantTransactionId}\")\n Log.d(\"Checkout\", \"- Payment method: ${result.paymentMethod}\") // \"Paypal\"\n \n // Note: Amount, currency, and other transaction details must be retrieved from backend\n // PayPal authentication is handled internally by PayPal\n}\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"error-handling","__idx":14},"children":["Error handling"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Handle PayPal-specific errors:"]},{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"kotlin","header":{"controls":{"copy":{}}},"source":"import com.pxp.checkout.exceptions.BaseSdkException\n\nonError = { error: BaseSdkException ->\n Log.e(\"Checkout\", \"Error code: ${error.code}\")\n Log.e(\"Checkout\", \"Error message: ${error.message}\")\n \n // Handle user cancellation\n if (error.message?.contains(\"cancelled\", ignoreCase = true) == true ||\n error.message?.contains(\"closed\", ignoreCase = true) == true) {\n Log.d(\"Checkout\", \"User cancelled PayPal payment\")\n // Don't show error - user intentionally cancelled\n return@CheckoutDropInConfig\n }\n \n // Handle PayPal-specific errors based on message content\n when {\n error.message?.contains(\"insufficient funds\", ignoreCase = true) == true -> {\n Toast.makeText(\n context,\n \"Insufficient funds in PayPal account. Please add funds or use a different payment method.\",\n Toast.LENGTH_LONG\n ).show()\n }\n error.message?.contains(\"restricted\", ignoreCase = true) == true -> {\n Toast.makeText(\n context,\n \"Your PayPal account is restricted. Please contact PayPal support.\",\n Toast.LENGTH_LONG\n ).show()\n }\n error.message?.contains(\"declined\", ignoreCase = true) == true -> {\n Toast.makeText(\n context,\n \"Payment declined by PayPal. Please try a different payment method.\",\n Toast.LENGTH_LONG\n ).show()\n }\n else -> {\n Toast.makeText(\n context,\n \"PayPal payment failed: ${error.message}\",\n Toast.LENGTH_LONG\n ).show()\n }\n }\n}\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":4,"id":"common-error-scenarios","__idx":15},"children":["Common error scenarios"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The following table describes common PayPal error scenarios:"]},{"$$mdtype":"Tag","name":"div","attributes":{"className":"md-table-wrapper"},"children":[{"$$mdtype":"Tag","name":"table","attributes":{"className":"md"},"children":[{"$$mdtype":"Tag","name":"thead","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"th","attributes":{"align":"left","data-label":"Scenario"},"children":["Scenario"]},{"$$mdtype":"Tag","name":"th","attributes":{"align":"left","data-label":"How to detect"},"children":["How to detect"]},{"$$mdtype":"Tag","name":"th","attributes":{"align":"left","data-label":"Recommended action"},"children":["Recommended action"]}]}]},{"$$mdtype":"Tag","name":"tbody","attributes":{},"children":[{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["User cancelled"]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["error.message"]}," contains \"cancelled\" or \"closed\""]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["No alert needed - user action was intentional"]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["Insufficient funds"]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["error.message"]}," contains \"insufficient\""]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["Suggest adding funds or using different payment method"]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["Account restricted"]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["error.message"]}," contains \"restricted\""]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["Direct user to contact PayPal support"]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["Payment declined"]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":[{"$$mdtype":"Tag","name":"code","attributes":{},"children":["error.message"]}," contains \"declined\""]},{"$$mdtype":"Tag","name":"td","attributes":{"align":"left"},"children":["Suggest trying different payment method"]}]}]}]}]},{"$$mdtype":"Tag","name":"Admonition","attributes":{"type":"info"},"children":[{"$$mdtype":"Tag","name":"p","attributes":{},"children":["PayPal errors return descriptive messages rather than specific error code constants. Check the ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["error.message"]}," property for error details. You can also use the ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["onCancel"]}," callback in ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["methodConfig.global"]}," to specifically handle user cancellations."]}]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":2,"id":"backend-verification","__idx":16},"children":["Backend verification"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Always verify PayPal payments on your backend to ensure payment success before fulfilling orders:"]},{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"kotlin","header":{"controls":{"copy":{}}},"source":"import com.pxp.checkout.checkoutdropin.types.DropInSubmitResult\n\nonSuccess = { result: DropInSubmitResult ->\n // Send to backend for verification\n coroutineScope.launch {\n try {\n val response = apiClient.post(\"/api/verify-payment\") {\n contentType(ContentType.Application.Json)\n setBody(mapOf(\n \"systemTransactionId\" to result.systemTransactionId,\n \"merchantTransactionId\" to result.merchantTransactionId\n ))\n }\n \n if (response.status.value == 200) {\n val verified = response.body()\n if (verified.success) {\n // Navigate to success screen\n navController.navigate(\"success?orderId=${verified.orderId}\")\n } else {\n Toast.makeText(\n context,\n \"Payment verification failed\",\n Toast.LENGTH_LONG\n ).show()\n }\n }\n } catch (e: Exception) {\n Log.e(\"Checkout\", \"Verification error\", e)\n Toast.makeText(\n context,\n \"Failed to verify payment\",\n Toast.LENGTH_LONG\n ).show()\n }\n }\n}\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"backend-verification-code","__idx":17},"children":["Backend verification code"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Use the following backend code to verify PayPal transactions via the PXP API:"]},{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"javascript","header":{"controls":{"copy":{}}},"source":"// BACKEND: Verify PayPal payment\napp.post('/api/verify-payment', async (req, res) => {\n const { systemTransactionId, merchantTransactionId } = req.body;\n \n try {\n // Query the PXP API to get transaction details\n const txnPath = `api/v1/transactions/${systemTransactionId}`;\n const { authHeader, requestId } = createAuthHeader(\n txnPath,\n '',\n process.env.PXP_TOKEN_ID,\n process.env.PXP_TOKEN_VALUE\n );\n \n const transaction = await fetch(\n `https://api-services.pxp.io/${txnPath}`,\n {\n headers: {\n 'X-Client-Id': process.env.PXP_CLIENT_ID,\n 'X-Request-Id': requestId,\n 'Authorization': authHeader\n }\n }\n ).then(r => r.json());\n \n // Verify transaction state\n if (transaction.state !== 'Authorised' && transaction.state !== 'Captured') {\n return res.json({ success: false, error: 'Transaction not successful' });\n }\n \n // Verify merchant transaction ID matches\n if (transaction.merchantTransactionId !== merchantTransactionId) {\n return res.json({ success: false, error: 'Transaction ID mismatch' });\n }\n \n // Verify amount matches expected amount from your order records\n const order = await getOrderByMerchantTransactionId(merchantTransactionId);\n const txnAmount = transaction.amounts?.transactionValue || transaction.amount || 0;\n if (Math.abs(txnAmount - order.amount) > 0.01) {\n return res.json({ success: false, error: 'Amount mismatch' });\n }\n \n // PayPal payments show as PayPal funding type\n const fundingType = transaction.fundingData?.fundingType || \n transaction.fundingType || \n 'Unknown';\n if (fundingType !== 'PayPal') {\n return res.json({ success: false, error: 'Invalid funding type' });\n }\n \n // Fulfill order\n const orderId = await fulfillOrder(transaction);\n \n return res.json({ success: true, orderId });\n \n } catch (error) {\n console.error('Verification error:', error);\n return res.json({ success: false, error: 'Verification failed' });\n }\n});\n","lang":"javascript"},"children":[]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":2,"id":"advanced-paypal-flows","__idx":18},"children":["Advanced PayPal flows"]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":3,"id":"paypal-vaulting-one-click-payment","__idx":19},"children":["PayPal vaulting (one-click payment)"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["PayPal vaulting allows returning customers to pay with one click by saving their PayPal account. When enabled, customers who have previously connected their PayPal account can skip the PayPal login flow entirely."]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":4,"id":"how-it-works-1","__idx":20},"children":["How it works"]},{"$$mdtype":"Tag","name":"ol","attributes":{},"children":[{"$$mdtype":"Tag","name":"li","attributes":{},"children":["The customer pays with PayPal and agrees to save their account."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["PayPal vaults the account and returns a vault ID."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["On return visit, ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["onGetShopper"]}," provides the shopper ID."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Drop-in enables one-click PayPal payment (no web view)."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["The customer taps \"Pay with PayPal\" and payment completes instantly."]}]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":4,"id":"enable-paypal-vaulting","__idx":21},"children":["Enable PayPal vaulting"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Implement ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["onGetShopper"]}," to enable vaulting:"]},{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"kotlin","header":{"controls":{"copy":{}}},"source":"import androidx.compose.foundation.layout.fillMaxWidth\nimport androidx.compose.runtime.*\nimport androidx.compose.ui.Modifier\nimport androidx.compose.ui.platform.LocalContext\nimport com.pxp.checkout.checkoutdropin.CheckoutDropIn\nimport com.pxp.checkout.checkoutdropin.types.CheckoutDropInConfig\nimport com.pxp.checkout.components.checkoutdropincomponent.CheckoutDropInComponent\nimport com.pxp.checkout.models.DropInTransactionData\nimport com.pxp.checkout.models.DropInTransactionIntentData\nimport com.pxp.checkout.models.DropInPayPalIntentType\nimport com.pxp.checkout.models.Environment\nimport com.pxp.checkout.models.EntryType\nimport com.pxp.checkout.models.IntentType\nimport com.pxp.checkout.checkoutdropin.types.DropInSubmitResult\nimport com.pxp.checkout.exceptions.BaseSdkException\nimport com.pxp.checkout.services.models.transaction.Shopper\n\n@Composable\nfun CheckoutScreen() {\n val context = LocalContext.current\n var sessionData by remember { mutableStateOf(null) }\n var checkoutDropInComponent by remember { mutableStateOf(null) }\n \n // Fetch session from backend (with PayPal enabled)\n LaunchedEffect(Unit) {\n sessionData = fetchSessionFromBackend()\n }\n \n // Initialize Drop-in once session is loaded\n LaunchedEffect(sessionData) {\n sessionData?.let { session ->\n val checkoutDropIn = CheckoutDropIn.initialize(\n context = context,\n config = CheckoutDropInConfig(\n environment = Environment.TEST,\n session = session,\n ownerType = \"MerchantGroup\",\n ownerId = \"MERCHANT-1\",\n transactionData = DropInTransactionData(\n currency = \"GBP\",\n amount = 99.99,\n entryType = EntryType.Ecom,\n intent = DropInTransactionIntentData(\n card = IntentType.Purchase,\n paypalDropInIntent = DropInPayPalIntentType.Purchase\n ),\n merchant = \"Demo Store\",\n merchantTransactionId = { UUID.randomUUID().toString() },\n merchantTransactionDate = { Instant.now().toString() }\n ),\n // REQUIRED: Provide shopper ID to enable PayPal vaulting\n onGetShopper = {\n val user = getCurrentUser()\n Shopper(id = user.shopperId) // e.g., Shopper(id = \"shopper-123\")\n },\n onSuccess = { result: DropInSubmitResult ->\n coroutineScope.launch {\n verifyPaymentOnBackend(result)\n navController.navigate(\"success\")\n }\n },\n onError = { error: BaseSdkException ->\n Log.e(\"Checkout\", \"PayPal payment failed\", error)\n Toast.makeText(\n context,\n \"Payment failed: ${error.message}\",\n Toast.LENGTH_LONG\n ).show()\n }\n )\n )\n checkoutDropInComponent = checkoutDropIn.create()\n }\n }\n \n // Render Drop-in\n checkoutDropInComponent?.Content(modifier = Modifier.fillMaxWidth())\n}\n","lang":"kotlin"},"children":[]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["When ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["onGetShopper"]}," returns a shopper ID, the SDK automatically:"]},{"$$mdtype":"Tag","name":"ul","attributes":{},"children":[{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Fetches the PayPal user ID token from the PXP API."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Enables one-click payment for vaulted PayPal accounts."]},{"$$mdtype":"Tag","name":"li","attributes":{},"children":["Handles vault setup during the first payment."]}]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":4,"id":"paypal-vaulting-configuration","__idx":22},"children":["PayPal vaulting configuration"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["You can configure PayPal vaulting behaviour using ",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["methodConfig.paypal.enableOneClickPayment"]},":"]},{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"kotlin","header":{"controls":{"copy":{}}},"source":"CheckoutDropInConfig(\n // ... other config\n methodConfig = DropInMethodConfig(\n paypal = DropInPaypalConfig(\n enableOneClickPayment = true // Enable PayPal vaulting\n )\n )\n)\n","lang":"kotlin"},"children":[]}]},"headings":[{"value":"PayPal","id":"paypal","depth":1},{"value":"Overview","id":"overview","depth":2},{"value":"Key benefits","id":"key-benefits","depth":3},{"value":"How it works","id":"how-it-works","depth":2},{"value":"Configuration","id":"configuration","depth":2},{"value":"Configuration properties","id":"configuration-properties","depth":3},{"value":"Settings used from global configuration","id":"settings-used-from-global-configuration","depth":3},{"value":"Complete example","id":"complete-example","depth":3},{"value":"PayPal requirements","id":"paypal-requirements","depth":3},{"value":"Implementation","id":"implementation","depth":2},{"value":"Session configuration (backend)","id":"session-configuration-backend","depth":3},{"value":"Payment flows","id":"payment-flows","depth":3},{"value":"Handling responses","id":"handling-responses","depth":2},{"value":"PayPal callback data","id":"paypal-callback-data","depth":3},{"value":"Error handling","id":"error-handling","depth":3},{"value":"Common error scenarios","id":"common-error-scenarios","depth":4},{"value":"Backend verification","id":"backend-verification","depth":2},{"value":"Backend verification code","id":"backend-verification-code","depth":3},{"value":"Advanced PayPal flows","id":"advanced-paypal-flows","depth":2},{"value":"PayPal vaulting (one-click payment)","id":"paypal-vaulting-one-click-payment","depth":3},{"value":"How it works","id":"how-it-works-1","depth":4},{"value":"Enable PayPal vaulting","id":"enable-paypal-vaulting","depth":4},{"value":"PayPal vaulting configuration","id":"paypal-vaulting-configuration","depth":4}],"frontmatter":{"seo":{"title":"PayPal"}},"lastModified":"2026-05-20T14:39:05.000Z","pagePropGetterError":{"message":"","name":""}},"slug":"/guides/checkout/drop-in/android/paypal","userData":{"isAuthenticated":false,"teams":["anonymous"]},"isPublic":true}