Sending order confirmation email even though payment page wasn't opened

[basil_m k]

I have an issue in Magento 2.2.5 where order confirmation mail is sent even if payment page didn't open. Is this due to any issue in Magento 2.2.5 ?  

Screenshots - 

Best Regards, Basil

[PankajS_Magento]

Hi @basil_m k 

It means that your orders are successfully placed. But the only reason you are getting this error on your screen is that your Magento store not receiving correct response from payment gateway.

There could be following reasons:

1) Your website is on any staging instance

2) If your website is running on IP address

3) Payment gateway is not sending correct response

4) You are using any sandbox account for testing and response is not secure.

Please check the following things at your end. It might be helpful for you.

Thanks

--
If my answer is useful, please Accept as Solution & give Kudos

[Tarandeep Singh]

@basil_m kHey,

Did you check Magento or server log?If not please do to see if you see any error causing that popup to appear.

Are you using Payment module from a 3rd party developer or you have created your own? Payment gateway module may also have an error.

Problem solved? Please give 'Kudos' and accept 'Answer as Solution'.