Simulative MRP Run

Hello everybody,
I have a question about the MRP Run, and the way we could implement our way to work...
For the moment, some raw materials (bottom of the BOM's) are used with MRP Type "VB".
This allows MRP to create purchase requisitions following min/max levels.
We would like to keep this for the moment.
But we also would like to enter a ticket (= needed quantities) for one month on the top items of the BOM's, and run the MRP to see the raw materials requirements.
But, "just to see"... not to order in reality...
Is it possible?
In fact, it's a kind of "simulative" MRP Run...
In the future, we will have to order the raw materials, following the requirements generated from the ticket.
BUT
we will have also the real requirements on raw materials to cover the needs of the production.
Do you think it is possible to use MRP Run in both ways?
My feeling is that it is impossible, but I would like to have a feedback of experts on this.
In our "old" system, which SAP is designed to replace, we have the possibility to do this:
- We have a schedule on the BOM top-items;
- We run the requirements calculation;
- We get the raw materials requirements used for production/logistic.
But we also have this (separetely of course):
- We have a ticket (kind of schedule for a longer period) on the BOM top-items;
- We run the requirements calculation;
- We get the raw materials requirements used for purchasing.
We can do both in the system, but of course, in 2 different transactions (which are separate).
Do you think this is possible in SAP?
I hope this is not too confusing at reading... Anyway, thanks a lot in advance for your help on this subject.
Regards,
Rudy

Hello Rudy ,
Here is the idea behin Simulative MRP Run
Single-item, multi-level planning in simulative mode enables you to check the results during the planning run and to make adjustments. In contrast to planning with the parameter Display results before saving, the system displays problems with lower-level assemblies or with components on a higher-level or on the finished-product level and these can be solved immediately.
All the materials in a BOM structure are planned top-down.
All changes are saved in the main memory. The results are not entered in the database until after changes are saved.
For problems with dates such as order dates in the past, the system sets an exception message in the planned order of the higher-level material or in the planned order of the finished product and displays the delay. If there is a delay, the system displays the total number of days that a planned order is delayed due to a problem with a lower-level assembly or component. The system displays this information in two additional columns in the planning result of the finished product.
If the start date of an assembly for a finished product is 3 days in the past and the start date of the component that is installed in the assembly is 5 days in the past, the system displays a delay time of 8 days in the planning result of the finished product.
Evaluation functions such as the order report and the pegging function enable you to quickly find the procurement element causing the delay or the exception message.
You can change the relevant procurement elements and repeat the planning run for the next lower level of the BOM. The system then automatically firms the changed MRP elements.
Action Required : Goto MD01 you have to select the Simulation mode field in the initial screen for the single-item, multi-level planning run and started the planning run.
Hope thi will give you the idea about your requirement.
Reward point  if useful.
Regards
Jia

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