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Server and API responses

COUPON_DUPLICATE

This coupon code has already been issued

Read the detailed reason in the app alongside the checks below.

Start with these checks

  1. Check whether this coupon code has already been issued instead of repeatedly issuing it.
  2. Use a different code. If you are an administrator, sign in again and check the existing issue history.
See the setup and connection guide
Advanced diagnostics · for administrators and support

Check whether this coupon code has already been issued instead of repeatedly issuing it. Use a different code. If you are an administrator, sign in again and check the existing issue history.

The host is the remote PC; the client is the PC you connect from. If you cannot locate logs, start by sending the error code and detailed reason from the error window.

The error code alone does not show whether a device failed or a firewall blocked the connection. Check the detailed reason and logs as well.