If you're receiving Response Code 1 ("This transaction has been
approved"), then the payment itself is succeeding. The E00013 ("The
field is invalid") message is likely coming from another part of the API
request or response processing.A few things t...
The error indicates that usd_outlet_id and usd_terminal_id are required
configuration values for your sandbox merchant account, but they are
either missing from the request or not configured on the backend.I would
recommend checking:Your sandbox acco...
It sounds like webhook URLs may not support query parameters. If that's
the case, the recommended approach is usually to use an intermediary
endpoint or pass the required value through the request body, headers,
or URL path instead of a query string....
