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| MQ_ERROR_OBJECT_SERVER_NOT_AVAILABLE | MQ_ERROR_DTC_CONNECT |
MQ_ERROR_QUEUE_NOT_AVAILABLE
The queue cannot currently be reached or opened
MQ_ERROR_QUEUE_NOT_AVAILABLE () means the requested queue is not available through the active queue-manager/path. This can reflect deletion, offline service, route/connectivity, or a temporarily unavailable remote queue, and is distinct from an unsupported remote API.
Evidence to capture
Record exact format name/path, queue lookup result, local/remote queue-manager state, DNS/network reachability, transaction context, and the first lower-level communication result.
Focused correction
Restore the specific queue/queue-manager path or correct the queue identifier, then retry. Do not change message crypto/certificate settings unless an authentication-specific MSMQ code appears.
Technical references
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