Unable to create order / unable to send a request to CoinGate API

Reason	Solution
API credentials used in the wrong environment	Create separate users and separate API credentials for Sandbox (sandbox.coingate.com) or Live (coingate.com) environments
Incorrect API credentials	Please check if you have entered them correctly; make sure that there are no spaces before or after the text.
API requests are coming from a different IP address(es) than the IPs that were whitelisted when creating API credentials when creating	If IP whitelisting is desired, log in to your CoinGate account, visit API » Apps and clicking Edit next to your API credentials; make sure the whitelisted IPs match the IPs your requests are coming from
Your server cannot reach coingate.com	Check if coingate.com is available and if your server can reach it (also see Status Page)

You can see your API Request logs by locating API » Requests in the menu of your CoinGate account.

Order status is not updated / CoinGate does not send Payment Callback (Payment Notification)

Reason	Solution
Your server is on a private network, for example localhost	Make sure that your application is publicly accessible
Your website is disabled or in maintenance mode	Make sure your website is accessible
Your server firewall, third-party security service (Cloudflare, Incapsula, etc.) or your application is blocking CoinGate IP address(es)	Verify that CoinGate IP address(es) are allowed by your server firewall, third-party security services and your application

You can check the specific reason why Payment Callback was not sent by logging in to your CoinGate account and locating API » Payment Callbacks in the menu.