PayU Business

PayU Business integration enables your bot to receive PayU payments from your users. You can generate payment links, UPI intents for whatsapp pay and receive notifications on the success/failure of the payments.

1. Integrating PayU with Yellow.ai

To connect your PayU account with yellow.ai, follow these steps:

1.1 Get API keys for your PayU account

You need to write to PayUBiz team for the API keys. They will provide the keys for both the modes.

Test Mode: The test mode is a simulation mode that you can use to test your integration flow. Your customers will not be able to make payments in this mode.
Live Mode: Once you have tested your integration, you can switch to the live mode by replacing the test mode keys(in the yellow.ai integration section) with the live mode keys to accept payments from customers.

Enter the API keys in the Client ID field of Yellow.ai's integration module, which we will cover in the following section.

1.2 Connect PayU Business to yellow.ai

In a two-tier environment, you can connect an integration app in the Development environment. In a three-tier environment, you can connect the integration app either in Staging or Sandbox. All connected integrations are available in the live environment.

Navigate to the Development/Staging environment and go to Extensions > Integrations > Payment > PayU Business.

In Give account name, enter a unique name for the integration. You can use only lowercase alphanumeric characters and underscores (_).
In Salt value, enter the unique hash for each transaction, which is then used to verify the authenticity of the transaction. The Salt Value is provided by PayU and should be kept confidential.
Enter the Client ID, enter your PayU account's client ID.
In Payu base URL, enter the base URL to send API requests to the PayU payment gateway for payment processing.
In Payu UPI base URL, enter the base URL of the PayU UPI to send API requests to the PayU UPI payment gateway for UPI payment processing.

::note Payu base URL and and Payu UPI base URL will differ for test and live modes. Example:

Test mode - https://test.payu.in
Live mode - https://info.payu.in :::

Click Connect when you're done.
To add another account, click + Add account and proceed with the previous steps. You can add a maximum of 15 accounts.

1.3 Configure webhook URL

Copy the webhook URL and the API key mentioned in the Instructions section of the PayUBiz Integration section in the yellow.ai platform.

Use the webhook URL specific to your region - India, MEA, Jakarta, Singapore, USA, and Europe.

PayUBiz will whitelist the webhook URL provided by the merchant in their systems. You can write to the PayU Integration team for more information.

1.4 Enable PayU event to receive event in bot

On the Cloud Platform go to Staging/Development environment.
On the left navigation bar, click Studio > Event > Integrations and search for Payu Biz Payment Status.
Click on the more options icon and select Activate. If you have connected multiple accounts, you need to enable the event for each account.
Once the event is activated, you can create a flow in the Studio > Build and use the event at the start of the flow to trigger a specific action, such as displaying a message indicating that the payment is completed.

2. PayU payment actions through bot conversations

note

If there are multiple accounts, you can select from which account you want to perform the action.

2.1 Generate payment link

In the Studio flow builder, choose the node type as Integrations and select PayU from the list of integrations that have been enabled for that particular bot. An Integration Action Node will be added to the flow builder.

When you click the node, you will see the a drop-down with supported actions in this integration. Select Generate Payment Link.

Fill in the fields based on the details provided in the following table.

Field name	Sample value	Data type	Description
Amount	100	String	Amount to be paid using the payment link.
ProductInfo	Iphone	String	Name of the product the user wants to purchase.
Description	Test	String	Description of the product.
CustomerName	Manish	String	Name of the customer.
CustomerEmail	[email protected]	String	Email address of the customer.
CustomerMobileNumber	9999933344	String	Contact number of the customer.
txnID	Order123	String	The unique transaction ID that is generated dynamically.
CustomerAddress	Ashoka Road, Mysore, Karnataka	String	Address of the customer.
CustomerCity	New york	String	City of the customer.
CustomerResidentState	Karnataka	String	State of the customer.
CustomerZipcode	845309	String	Pincode of the customer.
Send Email	false	Boolean	The email address of the customer to send the invoice.
Time Unit	h	String	Frequency(in days, hours, minutes) at which a recurring payment will be charged.
UDF	Shipping Method	String	User defined field - used to store any information corresponding to a particular transaction.
Validation Period	1	Number	Determines how long PayU will continue trying to charge the customer if the initial payment fails.

To use this Integration Action Node in an app.yellow.ai bot, refer the following example:

app.executeIntegrationAction({
    "integrationName": "payu-payment-gateway",
    "action": "Generate Payment Link",
    "dynamicParams": {
        "amount": "1",
        "productInfo": "testProduct",
        "customerFirstName": "Test Customer",
        "customerEmail": "[email protected]",
        "customerMobileNumber": "9999999999",
        "txnid": "123456789"
    }
}).then((res)=>{
    console.log("response from action node", res);
    app.log(res, '||Response from action node||')
}).catch((err)=>{
    console.log("Error in action node",err);
    app.log(err, '||Error in action node||')
})

2.1 Generate UPI intent

From the PayU Business node, select the *Create UPI intent.

Provide the necessary inputs by selecting the relevant variable for each parameter. Below is a table containing sample values, data types, and descriptions for each of these fields.

Field name	Sample value	Data type	Description
Amount	100	String	Amount to be paid using the payment link.
CustomerEmail	[email protected]	String	Email address of the customer.
CustomerPhoneNumber	9999933344	String	Contact number of the customer.
CustomerName	Manish	String	Name of the customer.
Fail URL	https://alpha6.yellowmessenger.com/	String	The redirection URL in case there's a payment failure.
Success URL	https://alpha6.yellowmessenger.com/	String
The redirection URL in case of successful payment.
TXN S2S flow	4	number	Txn S2S flow.
Transaction ID	Order123	String	The unique transaction ID that is generated dynamically.
Product Info	Iphone	String	Description of the product.
UDF	CustomField	String	User defined Field - used to store any information corresponding to a particular transaction.

The Generate UPI intenrt Integration Action Node has two outcomes, success or failure. If the payment link is generated successfully, the Integration Action Node returns a Success response code as shown below:

{
       "metaData": {
         "message": null,
         "referenceId": "af65159e8566652849bc12a3450a8fca",
         "statusCode": null,
         "txnId": "wa5iy6b82pvquxcd1vby",
         "txnStatus": "pending",
         "unmappedStatus": "pending"
       },
       "result": {
         "paymentId": 15961819086,
         "merchantName": "wwwmerchantnamecom",
         "merchantVpa": "payumoney@hdfcbank",
         "amount": "1.00",
         "intentURIData": "pa=payumoney@hdfcbank&pn=Gaurav Dua&tr=15961819086&tid=wa5iy6b82pvquxcd1vby&am=1.00&cu=INR&tn=UPI Transaction for wa5iy6b82pvquxcd1vby",
         "acsTemplate": "PGh0bWw+PGJvZHk+PGZvcm0gbmFt"
       }
     }

If generating UPI intent fails, the Integration Action Node returns a Failure response code as shown below:

{
  "message": "[INTG ERROR] Node API Execution failed for payu-payment-gateway_Create UPI Intent in bot x1645073590274: 4xx or 5xx series code encountered",
  "name": "IntegrationNodeAPIError",
  "apiResponseBody": {
    "result": null,
    "status": "failed",
    "error": "EX117",
    "message": "Invalid amount #~#Please ensure that you send all mandatory parameters in the transaction request to PayU.<br><div style='font-size: 13px;padding: 0 150px; padding: 0 150px; line-height: 18px;'>Mandatory parameters which must be sent in the transaction are: <br><b>key, txnid, amount, productinfo, firstname, email, phone, surl, furl, hash</b></div>.<br><div style='font-size: 13px;padding: 0 150px; line-height: 18px;'>The parameters which you have actually sent in the transaction are: <br><b> key, txnid, amount, productinfo, surl, hash, firstname, email, phone</b>.</div><br><div style='font-size: 13px;padding: 0 150px; line-height: 18px;'>Mandatory parameter missing from your transaction request are: <br><b></b>.</div><br><div style='font-size: 13px;padding: 0 150px; line-height: 18px;'>Please re-initiate the transaction with all the mandatory parameters.</div></p> "
  },
  "apiResponseStatusCode": 500
}

To use this Integration Action Node in an app.yellow.ai bot, refer the following example:

app.executeIntegrationAction({
    "integrationName": "payu-payment-gateway",
    "action": "Create UPI Intent",
    "dynamicParams": {
        "amount": "1",
        "customerName": "farhan",
        "customerEmail": "[email protected]",
        "customerMobileNumber": "9643999539",
        "productInfo": "test",
        "txnid":"wa5iy6b82pvquxcd1vby",
        "successUrl":"https://staging.yellow.ai",
        "failUrl":"https://staging.yellow.ai",
        "txnFlow": 4
    }
}).then((res)=>{
    console.log("response from action node", res);
    app.log(res, '||Response from action node||')
}).catch((err)=>{
    console.log("Error in action node",err);
    app.log(err, '||Error in action node||')
})

1. Integrating PayU with Yellow.ai​

1.1 Get API keys for your PayU account​

1.2 Connect PayU Business to yellow.ai​

1.3 Configure webhook URL​

1.4 Enable PayU event to receive event in bot​

2. PayU payment actions through bot conversations​

2.1 Generate payment link​

2.1 Generate UPI intent​