Single process order spanning over multiple days...

[Former Member]

Hi All -

My scenario is as follows:

I have a semi FG C going into multiple FGs A and B.

Receipts for A and B create dependent requirements for C on different days of a week. It would always be 2 continous days, Monday-tues or Tue-Wed and so on.

My lot size period type is "Days - 1." So when I run PPDS heuristic, the system creates 2 planned orders to cover the 2 different dependent requirements since my period bucket is days - 1.

We would want only 1 planned order for semi FG C which spans over 2 days of the week. To achieve this, what I did is change the lot size period type to Week-1 ( with period factor 1) which would create a single process order on the last day of the week and have the scheduler move the order and align it with the receipt of the FIRST planned order( for A or B).

Is there anyway we can let the system do this for us? Again the requirements can be on Day 1-2,2-3,3-4,4-5 etc...but what we would like is based on when the multiple requirements are, the system create the planned order for C on the day of the requirement of the first receipt( be it A or B).

IF Dep Reqs are on day 2-3, the planned order for C is needed on day 2. If the dep reqs are on 4-5, the planned order for C should be on day 4.

Any inputs will be appreciated.

Also, is there any function in the DS planning board to "Merge" 2 orders?

Varun

[Former Member · Accepted solution]

Hi Varun,

I haven't worked on PP/DS, but have mapped the same requirement using SNP Optimizer. I think the process should not be much different. The following are the steps required:

1. You have to enable the resources for cross-period planning.

2. Increase the Min-Lot size of the PPM equal to 2 days production capacity.

3. Enable Crossperiod Planning in Optimizer Profile.

You can only try by enabling Crossperiod planning in resource master and increasing the Min-Lot size in the PPM.

This approach should work....

Regards,

Manjit

[Former Member · Accepted solution]

Hi

Changing to weekly lot size is the best option. It seems your problem is that the process order should get over (end date) before the first requirement. In such a case, you should also maintain a rounding value/fixed lot size in material C. Then process order will be created before the order of A or B (The first of the two) starts. In product view it will show a surplus on the first day and it will get consumed on the next day when B is produced.

Another way is to avoid using period factor so that heuristic creates planned order before the requirement.

Hope this should solve.

Nitin