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hopeH
Toss payments 개발자 커뮤니티•2d ago•
2 replies
hope

Problem with checkout_url from POST /v1/payments, return COMMON_ERRROR when I open url

Hello.

We are integrating Toss Payments in a server-to-server flow using
POST /v1/payments
POST /v1/payments
.

Our current setup is:
- Test MID:
tevacod7ohf
tevacod7ohf

- Live MID:
evacod7ohf
evacod7ohf


In the test environment, payments work correctly.

In the live environment,
POST /v1/payments
POST /v1/payments
succeeds and returns
status=READY
status=READY
together with a valid
checkout.url
checkout.url
.

Our live domain is
https://evacode.org
https://evacode.org
, and it is a public HTTPS domain with a valid TLS certificate.

However, when we open the returned
checkout.url
checkout.url
, it immediately redirects to
failUrl
failUrl
with this error:

code=COMMON_ERROR
code=COMMON_ERROR

message=처리 중 오류가 발생했습니다
message=처리 중 오류가 발생했습니다


The issue does not happen at payment creation time.
The payment is created successfully in live and returns a checkout URL.
The failure happens only when entering the live hosted checkout page.

We already verified that:
- the domain is public
- HTTPS/TLS is configured correctly
- the same integration works in the test environment

Could you please check whether live MID
evacod7ohf
evacod7ohf
is fully activated for real payments and whether any production approval, card review, or payment-method activation is still missing for this MID?

We would also like to confirm whether this immediate
COMMON_ERROR
COMMON_ERROR
at hosted checkout can be caused by merchant activation status, contract status, or payment-method configuration on the live MID.

Thank you.
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