The Connect Reader Queue window located in Solution Manager -> 
Integration -> IFS Connect navigator node lets you examine and manage 
messages read by Connector Readers.
In this window you can find information about messages processed by Connector Readers. For each of the processed messages there will be a row in this form, but as soon as the message has been successfully processed by the reader, the row will be removed.
On failure during message reading or deletion attempt the corresponding row 
will be marked with proper status. Each Connector Reader defines maximum number 
of retries and the reader will try to read and/or delete messages up to this 
number, but after that it will give up and ignore the listed message in future 
listings. If the reader's execution mode is InOrder it will not try to 
read other messages as long as there are rows in this table marked as Read 
Failed.
Read more about Connector Reader architecture.

Information about processed messages:
Note that you cannot modify the existing rows. You can only remove rows in 
this window. This is especially important for InOrder readers, which will 
not read new message as long as there are messages in state Read Failed 
for the actual reader.