---
updatedAt: 2026-07-22T10:42:14.000Z
agentTools:
projectIndex: https://docs.payu.in/llms.txt
---
# Android Ola Money SDK
A lightweight SDK which supports payments via OlaMoney (Postpaid + Wallet)
## Set up build.gradle
Add the below dependency in the application’s build.gradle:
```Text build.gradle
implementation 'in.payu:olamoney:1.3.14'
```
## SDK Callbacks
PayU OlaMoney provides the following callback functions:
* `onPaymentInitialisationSuccess()`: Callback invoked if the customer is eligible for OlaMoney(Postpaid/Wallet).
* `onPaymentInitialisationFailure(int errorCode, String description)`: Callback invoked when there is some error in Customer eligibility.
* The following error messages are displayed when using onPaymentInitialisationFailure.
> ❗️ Error
>
> Following errors can occur if the `onPaymentInitialisationFailure` callback is failed:
>
> `100: Mandatory params are missing. Please check again!`
>
> `101 Something Went Wrong!`
Create an instance of OlaMoneyCallback similar to the following code block:
```java Java
OlaMoneyCallback olaMoneyCallback = new OlaMoneyCallback() {
@Override
public void onPaymentInitialisationSuccess() {
}
@Override
public void onPaymentInitialisationFailure(int i, String s) {
}
};
```
## Checking OlaMoney Eligibility
Before proceeding with payment via OlaMoney payment mode merchant must check whether the customer is eligible for OlaMoney or not by using the following code block:
```Text JAVA
new OlaMoney().checkForPaymentAvailability(Activity activity, OlaMoneyCallback callback, PayUOlaMoneyParams olaMoneyParams);
```
Where `PayUOlaMoneyParams` object can be created as mentioned in the next section.
> 📘 Remember
>
> Values set in the `PayUOlaMoneyParams` must be the same that needs to be sent to PayU’s backend in payment post-data.
### Create PayUOlaMoneyParams
```Text JAVA
PayUOlaMoneyParams payUOlaMoneyParams = new PayUOlaMoneyParams();
payUOlaMoneyParams.setMobile(<Customer Mobile number>);
payUOlaMoneyParams.setFirstName(<Customer Firstname>);
payUOlaMoneyParams.setTxnId(<TransactionId>);
payUOlaMoneyParams.setMerchantKey(<PayU Merchant key>);
payUOlaMoneyParams.setHash(<Hash generated for OlaMoney Eligibility check>);
payUOlaMoneyParams.setAmount(<Amount that customer needs to pay>);
```
Where OlaMoney eligibility hash can be created as described in the following section.
### OlaMoney Eligibility Hash Generation
To generate the OlaMoney eligibility hash, use the method similar to the following:
`sha512(key|command|var1|salt)`
**Where**:
* Key – Merchant Key
* Command – get\_eligible\_payment\_options\
var1 – `{\\”amount\\”:\\””,\\”txnid\\”:\\”\\”,\\”mobile_number\\”:\\””,\\”first_name\\”:\\”\\”,\\”bankCode\\”:\\”OLAM\\”,\\”email\\”:\\”\\”,\\”last_name\\”:\\”\\”}`
* Salt – Merchant’s Salt
> 🚧 Remember
>
> The fields in the hashing string and the parameters in the var1 field should be in the exact same order as shown above.
| ErrorCode | Error Message | Description |
| :-------- | :---------------------------------------------------- | :--------------------------------------------------------- |
| 100 | Mandatory parameters are missing. Please check again! | Mandatory parameters for checking eligibility are missing. |
| 101 | Something Went Wrong! | |
## Payment Post Data
Payment post data can be created as follows:
```Text JAVA
PaymentParams paymentParams = new PaymentParams();
paymentParams.setKey(<Merchant Key>);
paymentParams.setAmount(<Transaction Amount>);
paymentParams.setProductInfo(<Product_info>);
paymentParams.setFirstName(<First Name of Customer>);
paymentParams.setEmail(<Customer's email>);
paymentParams.setTxnId(<Transaction Id>);
paymentParams.setSurl(<Success Url>);
paymentParams.setFurl(<Failure Url>);
paymentParams.setUdf1(“udf1”);
paymentParams.setUdf2(“udf2”);
paymentParams.setUdf3(“udf3”);
paymentParams.setUdf4(“udf4”);
paymentParams.setUdf5(“udf5”);
paymentParams.setPhone(<Customer's Phone Number>);
paymentParams.setHash(<Payment Hash>);
PostData postData = new PayUOlaMoneyPaymentParams().getPaymentPostData(paymentParams);
if(postData.getCode() == PayuErrors.NO_ERROR){
String postDataValue = postData.getResult();
}else{
String errorValue = postData.getResult();
}
```
## Set up for Test/Sandbox Merchant
If you use the SDK with a test merchant, please provide this metadata value to the manifest file.
```Text XML
```