Reg Planned order Scheduling

[former_member218144]

Hi All,

In our business the materials are planned on monthly basis.

I had created a requirement for a material for the month of November 2013.

The scheduling Type is forward.

But when I run the MRP the system is scheduling the order in the month of December 2013(December 1 st) and proposes rescheduling to the current month(November 1st).

I unable to understand the behavior of the system as why its not scheduling in the current month or from the current date.

Can you please explain  me the system's behavior?

Thanking you in advance.

Regards

Richie

[former_member184655 · Accepted solution]

Dear Richie Ravi,

During MRP run by backward scheduling if the order start date lies in the past, the system

automatically switches to forward scheduling, wherein the system uses the current system date as

the order start date and schedules it forward.

So in your case based on the lead time of the material, as the order start date went in the past and

start in the past is not allowed in the respective plant, the system automatically switches to forward

scheduling with mentioning the rescheduled date as the requirements date and so your able to see

as 01.11.2013 and the system displays the order finish date for the planned order - 01.12.2013.

Regards

Mangalraj.S

[former_member218144 · Accepted solution]

Dear Mangalraj,

Thanks for your reply.

If the start date is in the past the system could have scheduled  the order from the current date as the start date and could have scheduled accordingly?

But it has scheduled the start date as 1.12.2013 and proposed for a rescheduling.

Please explain on what logic the system has picked up the start date as 1.12.2013.

Regards

Richie

[Former Member · Accepted solution]

Richie,

It has proposed a finish date of December 1.  You haven't displayed the start date yet.  Can you please display the details of the order?

Best Regards,

DB49

[former_member218144 · Accepted solution]

Hi DB49,

Please find the screenshot.It has proposed the start date as December 1.

Regards

Richie

[Former Member · Accepted solution]

Richie,

OK, so far so good.  What is the lot size for this material, and can you show me the OMI4 for this lot size?

Best Regards,

DB49

[former_member218144 · Accepted solution]

Hi DB49,

I had maintained monthly lot size for this material.

Please find the screenshot of OMI4.

Regards

Richie

[former_member218144 · Accepted solution]

HI DB49,

I changed the settings in OMI4 for scheduling as requirements date= delivery date.

Now the order is getting scheduled from the current date.

Earlier the setting was to start the order from the period start.

Since the order start period in the past the system has scheduled in the next start period which is December 1.

Please correct me if I am wrong.

Regards

Richie

[former_member184655 · Accepted solution]

Dear Ravi,

Your observation and understanding is correct and I guess neither the in-house production time nor the

GR Processing time is not maintained in the MRP2 view of the material master.

Check and update.

Regards

Mangalraj.S

[former_member218144 · Accepted solution]

Dear Mangalraj,

You are right the in-house production time and the GR processing time is  not maintained .

Thanks for all your replies.I am closing this thread.

Regards

Richie