---
page_title: Additional Parameters
product: UPI TPAP SDK
platform: Flutter
page_source: https://juspay.io/in/docs/upi-tpap-sdk/flutter/miscellaneous/additional-parameters
llms_txt: https://juspay.io/in/docs/llms.txt
product_llms_txt: https://juspay.io/in/docs/upi-tpap-sdk/llms.txt
---


## Additional Parameters




### [Initiate Request](../interaction-with-sdk/initiating-the-sdk)




| Parameters | Data Type | Description |
|---|---|---|
| shouldCreateCustomer | Boolean | true if customer is not registered, false if customer already exists. |
| upiEnvironment | String | Environment to be used for the UPI. Accepted values are 'sandbox' or 'production'. |
| logLevel | String | Only required for Clickstream events. Value: '1' |
| theme | String | Possible values: light/dark. By default: light |


---

## See Also

- [Terminate SDK](https://juspay.io/in/docs/upi-tpap-sdk/flutter/miscellaneous/terminate)
- [Generating the Signature](https://juspay.io/in/docs/upi-tpap-sdk/flutter/resources/generating-the-signature)