internal movement control

Summary:

Hello,

We have a business requirement where there are many internal movement processes could happen on the same shipment, from source (pickup) to destination (delivery).

We have created two fields in the shipment counting a specific tracking event called "INTERNAL MOVEMENT ARRIVAL" using an agent which determines the type of the stop (P or D) and count in the corresponding fields

We need to make an Action Check where users cannot insert a tracking event on the P stop unless the P counter is equal to the D counter

And not to insert the tracking event on the D stop unless the D counter is less than the P counter by 1