# Unable to Purchase Developer API Points - console error "Payment data cannot be validated with security hash key"

**URL:** https://community.purpleair.com/t/unable-to-purchase-developer-api-points-console-error-payment-data-cannot-be-validated-with-security-hash-key/8213
**Category:** API
**Created:** [March 14, 2024, 12:42am UTC](https://community.purpleair.com/t/unable-to-purchase-developer-api-points-console-error-payment-data-cannot-be-validated-with-security-hash-key/8213 "2024-03-14T00:42:06Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![Airjustinfo](https://avatars.discourse-cdn.com/v4/letter/a/67e7ee/32.png) [@Airjustinfo](https://community.purpleair.com/u/Airjustinfo)
#### Post date: [March 14, 2024, 12:42am UTC](https://community.purpleair.com/t/unable-to-purchase-developer-api-points-console-error-payment-data-cannot-be-validated-with-security-hash-key/8213/1 "2024-03-14T00:42:06Z")

</div>

Hi -  
I cannot make a successful transaction after using multiple credit cards. I am confident it isn’t my card, as I can purchase it from other sites. It seems to stop before the transaction is attempted.

After I inspected the post request, it looks like it’s not attempting the payment and just returning a 400 error - “Payment data cannot be validated with security hash key.”

Please advise.

 ![Screen Shot 2024-03-13 at 8.40.41 PM](https://us1.discourse-cdn.com/flex020/uploads/purpleair/original/2X/4/4ab91bf320a281606f729624bcf5a3fe5b7cd34d.png)

---

<div class="post-metadata">

### Author: ![Josh\_PurpleAir](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/josh_purpleair/32/2842_2.png) [@Josh\_PurpleAir](https://community.purpleair.com/u/Josh_PurpleAir)
#### Post date: [March 14, 2024, 2:59am UTC](https://community.purpleair.com/t/unable-to-purchase-developer-api-points-console-error-payment-data-cannot-be-validated-with-security-hash-key/8213/2 "2024-03-14T02:59:48Z")

</div>

Hi @Airjustinfo. We recently saw your email about this issue and responded. A new update was recently deployed for the [develop site](https://develop.purpleair.com/). It’s possible that this could be related, and we’ll investigate to see if this is the case.

Edit: We’ve resolved the problem and payments should now go through without issue.