Queue
Definition
A queue is a logical file to which warehouse tasks (WTs) for processing are assigned. Queues define movements by which work in the warehouse is managed and assigned.
Use
The management and distribution of work in the warehouse is accomplished by the assignment of resources and WOs to queues.
A resource may execute only those WOs that belong to one of its allowed queues (unless the WOs are manually assigned). This means a queue to which the resource or resource group is assigned, and in which the resource is authorized to work. In addition, a resource working within a particular operating environment may execute only those WOs that belong to a queue in the same operating environment.
Note
You determine the operating environment of a queue during queue definition (Customizing for
Extended Warehouse Management
Cross-Process Settings
Resource Management
Define Queues
).
The operating environment of a resource is determined when the resource logs on to the RF or non-RF environment.
Resource Assignment to Queue
You can assign a resource to a specific queue, or assign its resource group to a sequence of allowed queues. WO selection will be performed first according to the resource’s assigned queue, and, in the absence of an assigned queue, according to the resource group’s queue sequence. For more information, see Warehouse Order Selection .
Note
You assign a resource to a queue using the resource maintenance transaction, accessed on the
SAP Easy Access
screen (
Extended Warehouse Management
Master Data
Resource Management
/SCWM/RSRC - Maintain Resource
), or from the
warehouse management monitor
(
Maint. Resource
method
).
You assign/unassign a resource group to/from a queue using the queue sequence for resource group transaction, accessed on the
SAP Easy Access
screen (
Extended Warehouse Management
Master Data
Resource Management
/SCWM/QSEQ - Maintain Queue Sequence for Resource Group
), or from the warehouse management monitor (
Assign Queue/Unassign Queue
methods)
Warehouse Order Assignment to Queue
When the system creates a WT, it searches for an appropriate queue to assign to it, based on the following WT parameters:
Source activity area
Destination activity area
Bin access type
Warehouse process type
The search is performed in accordance with the access sequence, with the initial search being for an entry with all of these parameter values. If no queue is found, the queue determination table is read again, according to the next entry in the sequence.
Note
You define queue determination criteria and access sequences in Customizing for
Extended Warehouse Management
Cross-Process Settings
Resource Management
Define Queues
.