I’ve tried MXLoader 7.3.1 NextGen using REST service and API authentication, when I input the username and password and click on test connection button then api key appeared, but when I tried to click again on test connection button failed with this error
error code : 400
source : DoHttpCall
description : Bad Request
BMXAA9549E – The API key token is invalid. Either the token may have expired or the token has been revoked by the administrator.