# HTTP Response Status: 504
**URL:** https://forum.developer-developpeur.canadapost-postescanada.ca/t/http-response-status-504/77
**Category:** (Legacy) Developer Program APIs
**Created:** [July 30, 2026, 3:10pm UTC](https://forum.developer-developpeur.canadapost-postescanada.ca/t/http-response-status-504/77 "2026-07-30T15:10:52Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@iiiijjjjiiii](https://forum.developer-developpeur.canadapost-postescanada.ca/u/iiiijjjjiiii)
#### Post date: [July 30, 2026, 3:10pm UTC](https://forum.developer-developpeur.canadapost-postescanada.ca/t/http-response-status-504/77/1 "2026-07-30T15:10:52Z")
Using the developer SOAP API (endpoint soa-gw.canadapost.ca) from time to time I get the response below. Is there anything I should do about this?
HTTP Response Status: 504
ERROR: The request could not be satisfied
# 504 ERROR
## The request could not be satisfied.
* * *
CloudFront attempted to establish a connection with the origin, but either the attempt failed or the origin closed the connection. We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner.
If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation.
* * *
```
Generated by cloudfront (CloudFront)
Request ID: mVIrsBcyWj_zI9j3NCXRrcl-tIkQkBUhD7tywI_X5_VOOI3EcjQR0A==
```
---
### Author:  [@cpc.admin](https://forum.developer-developpeur.canadapost-postescanada.ca/u/cpc.admin)
#### Post date: [July 31, 2026, 5:29pm UTC](https://forum.developer-developpeur.canadapost-postescanada.ca/t/http-response-status-504/77/2 "2026-07-31T17:29:55Z")
Hi iiiijjjjiiii,
We had an issue with CloudFront blocking some of our traffic on Thursday morning, it have since been resolved.
Please let us know if you still experience any issues.
Many thanks,
The Developer Program team