Missing Parts in MDVP

Question

Hi All - Can any of you help me with the below issue under availability check for planned orders? Here is the scenario, our client needs to run the availability check for planned orders upfront to get a better understanding of what materials will be short before they are converted to process orders. I have been testing MDVP transaction but it doesn't completely satisfy the requirement. Please see the example below and let me know if there is any thing that we can set in config. to fix the issue.
Lets say there is a Finished good A which has a BOM with components B and C.  To make it simple with numbers, we will need  100 EA of B and 100 EA of C to make 100 EA of A.  We have 3 planned orders created for A for 100 EA per planned order. Available stock for B is 0 EA but we have 100 EA of material C available. Now when I run the collective availability check for these planned orders in MDVP and go to the missing parts list,  I can see that part B is indicated as missing (check box for missing part list) for all 3 planned orders which is perfect as we dont have any available stock. However, material C doesn't have the missing part indicator checked for any of the orders. This is my issue, as we know we only have 100 EA available but the total requirement across 3 planned orders is 300 EA so ideally system should flag material C for the last two orders (based on the dates) to be missing.
I have checked all threads but couldnot find an answer. I have included  dependent req. and reservations in the scope of check for the checking rule that we are using that way system should include all existing dependent requirements(from these planned orders). Note that commited qty is 0 for all planned orders as none of them could be satisfied because of shortage of B.
I have tested both individual and ATP check while doing the availability check but it didn't make any difference.
Note that when I change the requirement Qty for C on the planned orders  to 200 (or any number greater than 100) then system will flag material C for all 3 orders to be missing. So it is more like checking the availability for components individually(per planned order) rather than collectively. I am not sure if there is a setting that will change the way this check is done but this is what is happening for the available quantity of the component.
Please let me know if you have any solution.
Thanks,
Bharath

Answer 1

Hi Suri - Thanks for your response. I tried both with blank(individual and collective) and 2 (collective req. only) but I still get the same result. I found one other setting that can solve this issue and that is checking the activate full confirmation logic at the the MRP group level in OPPR. I will test more and let you know if that works but we dont use MRP groups here at our client and that is why I was little hesistant to set up collective availability check parameters at the MRP group level. But looks like this is the only option that we can use to get this resolved.
Thanks,
Bharath