Cause
A test-environment integration can validate a catalog operation, but only a production one applies it.
What to do
Apply the operation with a production integration.
application/problem+json
{
"type": "https://masnet.com/developers/errors/apply_not_allowed_in_test",
"title": "Apply is not allowed in test",
"status": 403,
"detail": "...",
"code": "apply_not_allowed_in_test",
"correlation_id": "..."
}