question

Hi @Michal K5

1. I have created a group called "Group1" and add all the destination queues (Queue2,Queue3,Queue4) into the group.

2. Source >> OnCreation trigger, I have assigned the destination queue as a label called DestQueue to all the items based on the item type. Here I am getting the destination queue from the group based on the item type.

e.g: if the item type for newly created item is 1 then below code will return the value as Queue2 and assign the value to the DestQueue. Likewise if Itemtype 2 means, it will assign Queue3 as a value to DestQueue.

Object involved = item;
string labelname = "DestQueue";
Variant value = Model.find("Tools/Groups/Group1").subnodes[item.Type].value.up.up;
involved.labels.assert(labelname).value = value;

3. Queue1 >> Send To Port, Push all the items into the list called "ItemList1".

When you are creating new list, default expression and label fields are available and also you can add your new fields based on your need. Here I have added new label field called DestQueue for our reference also updated the queueSize expression field as shown below

value.DestQueue.subnodes.length

Here, value is the item which you are pushing into the list. Since you have already assigned destination queue for the all items as a label called "DestQueue", you can access the destination queue content by using the above code.

4. EntryTransfer1 >> Pull Strategy, Using the below query to pull the items From the "ItemList1".

WHERE queueSize < 5

5. ItemList1 >> BackOrders >> Back Order Reevaluation Events, this pane defines the back order reevaluation events, Here I have reevaluate the pull request whenever the items exit from the destination queues (Queue2,Queue3,Queue4).

From User Manual >> Reference >> Tools >> Global Lists >> Back Orders Tab >> Back Orders Reevaluation Events

For example, consider the following query:WHERE queueSize<=5. If the pull request is made at a point when queueSize is greater than 5, then you may want to reevaluate that pull request when queueSize becomes less than 5. FlexSim doesn't automatically know when this condition may change, so you need to define events that will trigger reevaluation.

Hope this is understandable.

Thanks