Planning Calendar: day of purchase requisition is wrong

[Former Member]

I want to create purchase orders every Tuesday through planning calendar.

I set period lot size "PK" (MRP 1 view) and planning calendar(MRP 2 view) in Material Master. MRP run and purchase requisitions are created on NOT Tuesday.

Example: image of MD04

20/6/2017(Tue) Sales Order

21/6/2017(Wed) Sales Order

26/6/2017(Mon) Sales Order

03/7/2017(Mon) Sales Order

After MRP run.

20/6/2017(Tue) Purcahse requisition

20/6/2017(Tue) Sales Order

21/6/2017(Wed) Sales Order

26/6/2017(Mon) Sales Order

03/7/2017(Mon) Purcahse requisition

03/7/2017(Mon) Sales Order

In this case, I think that the purchase requision should be created on 27/6/2017(Tue) not 03/7/2017(Mon).

Whant should I do to solve this matter?

Best regards,

Mei

[Former Member]

I've changed shedulling setting in customizing MRP Lot Sizing from blank to 1.

As a result, a purchase requision is created on 27/6/2017(Tue).

Thanks!