Use of Planning Calender

Question

Hi gurus,
I want to understand the use of Planning Calender. I want to know what will happen if i use the Counter as 2 and give the day as Monday. Please give me an example so that i can understand the use of Planning Calender. And also on the Procurement Proposals getting created based on Planning calender.
Regards
brijesh

Answer 1

Hi,.
     Planning calendar (MARC-MRPPP) in combination with lot size PK works in MRP calculation date, but not in ATP.
Example: today is 1/15/09 (Thur), my calendar is configured to have deliveries on Tues, Planned delivery time is 6, GR time is 1. MRP will calculate the following date:
1/15 + 6 = 1/21 (Wed). It would then increase the date to the next Tues (1/27)
1/27 + 1 = 1/28 - this is the result for the requisition date.
If I enter a sales order (ATP check to use RLT) and there is not available inventory, I get confirmed date 1/22! The system takes today 1/15 + 6 + 1 = 1/22. But this is 6 days before MRP can confirm it!
Menu path: Production -> MRP -> Master Data -> Planning Calendar (MD25)
You will then need to use this planning calendar (the one you created) in the material master when planning your raw materials (MRP2 View in 4.6C - Field name : Planning Calendar).
1. When you maintain the planning calendar you will need to enter a valid from date and valid to date.
2. Your periods will also need to be set up and they will be weekly, for example:
    From Date : 11/23/2009   To Date : 11/29/2009   (11/23 is a Monday, this is your from date).
    Do this for as may weeks as you wish (say weekly for 2 years).
3. When you have set up the planning calendar, you will then need to make some changes to the weekly lot size configuration
    (WB), or you may need to create a new lot size key if you do not want to change 'WB'. Essentially, you will need to use the
    following in the lot size configuration (OMI4) :
    No. of Periods : 1
    LotSizeProced.: P
    LotSize ind : K
    Scheduling : 1