---
page_source: https://docs.juspay.io/upi-inapp/android/resources/appendix
page_title: Appendix
---


## Appendix



[Transaction Error codes](https://developer.juspay.in/v2.0/docs/transaction-status-codes)

[Hyper SDK FAQ](https://developer.juspay.in/v2.0/docs/faqs)

[Signature generation](https://developer.juspay.in/v4.0/docs/generating-the-signature)