The iTMS status action system manages all of the order queues. Each process is in an order queue and can be processed from there. Processing can be automatic or manual. Naturally, every effort is made to avoid manual processing, but there will be situations where it is appropriate.
When inserting a new process box in the flow a queue is automatically generated. I.e. although the process for the relevant queue may take time to be expedited, as the entity it communicates with responds slowly, the orders will simply accumulate in the queue awaiting their turn.
The picture is from the iTMS Flow builder for creating process flows.

Here, we can see that the objective of this function is to run an Install procedure, the purpose of which is to update the Number porting status in an external system. Once this has been done, the order proceeds to the next desk.
The dark grey box is a manual order handling queue.
The order handling people need to insert SIP information and push the OK bottom when finished.
The iTMS order processing system takes care of dealing with any manual processes that may be associated with such a system. This could be the handling of number porting or credit ratings etc. which, in this solution, require a manual process. Naturally, these processes can be automated too.
The manual order queues can be adapted for individual departments. In this case, Logistics handles the entering of the SIP codes into VOIP.

The customers' orders are in a queue awaiting expedition. Once data is entered and OK is clicked, the next order can be expedited.