# On Live env, ASP.NET CORE Payment giving error

**URL:** https://community.rapyd.net/t/on-live-env-asp-net-core-payment-giving-error/1850
**Category:** 🙋🏽‍♀️🙋🏽‍♂️ Ask Questions
**Created:** [May 24, 2022, 3:57pm UTC](https://community.rapyd.net/t/on-live-env-asp-net-core-payment-giving-error/1850 "2022-05-24T15:57:03Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![Community\_Team](https://avatars.discourse-cdn.com/v4/letter/c/46a35a/32.png) [@Community\_Team](https://community.rapyd.net/u/Community_Team)
#### Post date: [May 24, 2022, 7:31pm UTC](https://community.rapyd.net/t/on-live-env-asp-net-core-payment-giving-error/1850/3 "2022-05-24T19:31:53Z")

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Thanks Iyas, @8538962a317c971ba767, let us know if that helps.

Thanks @fredjinbility!

Here are also some resources that may help:

- [How to verify Webhook Signature with PHP script](https://community.rapyd.net/t/how-to-verify-webhook-signature-with-php-script/1382)
- [Verify Webhook Signature?](https://community.rapyd.net/t/verify-webhook-signature/1383)
- [Calculation of Signature](https://community.rapyd.net/t/calculation-of-signature/288)

If the above doesn’t help, would check some of the commends on specifically how the body string is put together and the spacing around each string.

For example:

- All spaces and other whitespace outside of strings must be removed.
- Numbers should be sent in strings, not as numbers.

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_[View the full topic](https://community.rapyd.net/t/on-live-env-asp-net-core-payment-giving-error/1850)._