SAP What is # 2 - What is Rounding Profile ?

You can find the "Rouding profile" parameter by navigating in the Customizing as follows:
Use IMG path -> PP -> MRP -> Planning -> Lot-Size Calculation -> Maintain Rounding Profile.

The Rounding Profile key contains a series of Rounding Values based on Thresh-hold values.
For example: lot size from 1 - 59 will be rounded to 20.
For example: lot size from 60 - 899 will then be rounded to 100.
as depicted below.

From SAP的学习和考试 Learning & Examination

You can then assign the Rounding Profile to the MRP 1 view as below.

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This is how it is calculated: (look at the S/R list below)

You can see there are 2 reservations : 588 and 660 one after another.

As the stock is 0, the system will first consider the lot size for 588.
    Since lot size key is "EX", the gross lot size will be 588.
    The gross lot size falls into thresh-hold value of 60 - 899 range.
          with Rounding value of 100.
    Therefore 588 will be rounded to 600. (Round up)
    This result in 12 remnant stock (see the stock requirement list).

Next, let us look at the treatment for the second reservation of 660.
    considering the remnant stock of 12.
    Since lot size key is "EX", the gross lot size will be 648. .
    The gross lot size falls into thresh-hold value of 60 - 899 range
          with Rounding value of 100.
    Therefore 648 will be rounded to 600. (Round down)
    There is a 48 remaining demand to be treated.
    And that falls into thresh-hold value of 1 - 59 range
          with Rounding value of 20.
    Therefore 48 will be rounded to 60. (Round up).
    This will end with (600+60 = 660) for the second lot size.

From SAP的学习和考试 Learning & Examination

CONCLUSION: The Rounding Profile feature results in the MRP system using the mechanics illustrated above to derive the final lot size for the supply MRP element.

APPLICATION: Especially useful when the supplier or the buyer is having different packing sizes instead of 1. For example, the supplier have sizes of 20 per pack as well as 600 per pack.
So, it may supply with 1 box of 600 pack-size and 2 box of 20 pack-size for the order size of 640.

CAUTION: It overrides the simple Rounding value in the MRP view. When you combine the Rounding Profile with different lot size key, check and simulate the results before using the combination.
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