MQTT QoS 1 Queue name

I would like to stay with my mqtt solution because we want to make the consuming SAP system to control the message flow.
Back to my first question. Is there a way to fix the three digits id numer in the queue name, so we can checkt if a defined queue is there or not?
example:
mqtt/MQTTFOGarticleStore/351
Kind regards
Jens