Internal queue &1 cannot be created

What causes this issue?

The system tries to start an internal queue &V1& to continue processing
of a request from an EWM system. However, there is already an
unprocessed entry on this inbound queue which could potentially create a
subsequent internal queue entry that has to be processed <ZK>before
</>the current queue can be executed.
Internal queues are used for processing of direct outbound deliveries in
case that several documents in SAP S/4HANA have to be created or
changed, based on a single external queue submitted from EWM. This
applies for example for direct outbound deliveries for stock transfer
for which a stock transport order and an outbound delivery has to be
created, one after the other.

System Response

The system terminates processing of the current queue in order to ensure
the correct sequence of internal queues.

How to fix this error?

Inform your system administrator.

Procedure for System Administrators

Check the
<DS:TRAN.SMQ2>qRFC monitor</> for pending queues with the name &V1& and
ensure that these queue entries are processed successfully. Restart the
current queue afterwards.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.