Automatic Purchase Requestition creation for item category "L" (Stock Item)

Question

Hi All,
I have a query,
When components are assigned to a maintenance order whose item category is "L" (Stock Item).
As soon as components are assigned a reservation number is generated by the system immediately.
Now my requirement is,
for an item category which is "L" (Stock item), while I am saving / releasing the order, system should do availability check and based on the qty available it should automatically generate reservation (in case of full qty is available) or a purchase requisitions ( in case of non availability).
Is this feasible? If so kindly let me know how it can be done.
Currently in my case,
i am getting a reservation number for an an item whose item category is "L" but the stock qty is "zero". System should have ideally generated a purchase requisitions number for such a case because of actual available qty being "zero"
Is there any setting called "reservation time" so that after checking the availability of that item system decided whether a reservation number should be generated or a purchase requisition number?
Thanks and with best regards
Kannan J

Answer 1

Hi Thyagarajan,
I wud like to share with you  a content of SAP documentation which is as follows:
"You can plan materials that are required to execute the task for each operation in the maintenance order. The materials can be bill of material components for the reference object or freely assigned material.
<u>The materials that you plan for the maintenance order will be reserved in the warehouse, if they are kept in stock. You can set the reservation time in your system using the customizing function. In customizing, it is decided for each order type, whether the system should make the material reservation effective or generate the purchase requisition immediately or only when the order is released.</u>
An availability check can be called up when components are assigned in the order.
An automatic availability check is performed when the order is released. The order can also be released if there is no availability.
A material provision list and material withdrawal slips can be printed together with the order papers.
Planned goods issues are entered with reference to the reservation, such as reservation number, unplanned goods issues with reference to the order number.
The goods issues entered appear in the document flow of the order."
Now with this, is there a way out to resolve the issue?
Best Regards
Kannan J