Priority and Maximum Release Quantity per Period 
Priority and Maximum Release Quantity per Period
Features
Priority
Using the priority function, you can define the sequence of sources of supply irrespective of the quota rating and thus, irrespective of the quota-allocated quantity. If several sources of supply have priorities, then the source of supply with the smallest number in the priority field is selected first. Only once all the sources of supply with priorities have been selected, does the system then select the sources of supply with no priorities. Then, the system implements the normal logic for quota arrangements using the quota rating (see
Allocation Quota Arrangement).Maximum Release Quantity
The maximum release quantity defines the maximum available capacity of a source of supply and thus makes it possible to monitor capacities.
The maximum release quantity is defined for a certain period of time. In addition, you enter the number of periods for which the release quantity is valid, for example, a quantity of 200 pieces per week. The system checks whether the there are firmed receipts (firmed purchase requisitions and planned orders, firmed schedule lines, production orders, purchase orders) in the specified period that have already been scheduled or allocated and compares this quantity with the maximum release quantity.
If more firmed receipts are scheduled in a certain period than the maximum release quantity allows, then this source of supply is no longer used. Here, the system always checks using the availability date of the MRP element. For newly created procurement proposals, the system uses the requirement date of the source requirement.
If a certain percentage of the maximum release quantity has already been used for a source of supply and a further requirement occurs that exceeds the remaining quantity, then the system splits the requirement quantity. Another procurement proposal is created for this source of supply for the difference between the release quantity and the order proposal quantity. The rest of the requirement quantity is allocated to the next vendor whose turn it is according to the quota rating logic.