The topic filter provided is correctly formed but is not accepted by the server. Sent in a SUBACK or UNSUBACK packet when the server rejects the topic filter for policy reasons.
Numeric value: 143
TopicFilterInvalid
mqtt The topic filter provided is correctly formed but is not accepted by the server. Sent in a SUBACK or UNSUBACK packet when the server rejects the topic filter for policy reasons.
Numeric value: 143