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SIMG_CFMENUORKAKZM2 - Define Quantity-Based Overhead Rates

SIMG_CFMENUORKAKZM2 - Define Quantity-Based Overhead Rates

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An overhead rate determines the conditions under which overhead is allocated to an object, and how much overhead is allocated.

In this step you define quantity-based overhead rates, such as $100 per piece. You can also define percentage-based rates (such as 25% in controlling area 0001) in the previous step.

Percentage overhead rates are recommended if you want to allocate overhead to particular cost elements for a cost center independent of the quantity. In contrast, a quantity-based rate allocates overhead per unit of measure of a cost element. You can combine percentage and quantity-based rates. For example, you could define a rate of 10% on a cost element plus an additional $300 for every 100 hours.

Overhead rates have a time-based validity. You can adapt them to your requirements using the current settings.

You need to assign a dependency to each overhead rate. You can use the contents of particular fields of an order, cost center, or business process as dependencies. The fields you can use are predefined by the system. For example, you can apply a defined overhead rate for each plant by specifying a plant dependency. The fields you choose to define your dependency are saved in a condition table (price table). All condition tables in the system contain the fields "controlling area" and "overhead type", plus a maximum of one additional field (see below) for the order master, the cost center master, or the business process master.

You can apply overhead rates in plan data, actual data, and commitments. The overhead type differentiates accordingly between plan, actual, and commitment overhead. Business processes do not use commitments.

The standard SAP system provides overhead rates with the following dependencies:

  • Controlling area
  • Company code
  • Business area
  • Plant
  • Order type
  • Order category
  • Plan version
  • Profit center
  • Responsible cost center
  • Overhead type
  • Overhead key

To define order-dependent overhead rates, create an overhead key and enter it in the order master data.

To define product-dependent overhead rates, create an overhead key and link it to an overhead group. Then enter the overhead group in the costing view of the material master record.

To define a quantity-based overhead rate:

  1. Choose New entries.
  2. Enter any four-character identification code and a description for the new overhead rate, and assign a dependency to it.
  3. Select the line and choose "Detail".
  4. Specify the individual overhead rates.
Each record consists of a validity period, several condition fields taken from the price tables, and an amount to be applied to the base costs as overhead.
  1. Save your overhead rate.

To apply quantity-based overhead rates, the units of measure must be updated in Controlling (CO).

You have two options:

  • Set the Record Quantity indicator in the cost element master data.
  • If you want to assign different materials to an object (order, cost center, business process, WBS element, etc.) under the same cost element but with different units of measure, set the Material Origin indicator in the costing view of the material's master record. In addition, materials with different units of measure must have different entries in the "Origin Group" field.

With quantity-based overhead rates, the system only includes input materials and activities with units of measure that are updated in CO. For materials, these are the base units of measure.

Conversions between units of measure are based on the rules stored in the global settings in Customizing (step Check Units of Measurement). Quantity conversions (such as those that you define in the material master) are disregarded.
For example, the system applies overhead in $ per kilogram to input materials with the base unit of measure "G" but not to materials with the unit "pallet".






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