What is internal calculation key in SAP FI-AA - Asset Accounting?

SAP Term: internal calculation key

• Component: FI-AA

• Component Name: Asset Accounting

• Description: A part of the depreciation key. The internal calculation key establishes parameters for the depreciation calculation program.

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• Key Concepts: 
  Internal calculation keys are used in SAP Asset Accounting (FI-AA) to define the calculation logic for depreciation and other asset-related postings. They are used to determine the amount of depreciation to be posted for an asset, as well as the posting period and other related information. 
  
  How to use it: 
  Internal calculation keys are used in conjunction with asset classes and depreciation areas. When an asset is created, the internal calculation key is assigned to it. This key is then used to determine the amount of depreciation to be posted for the asset, as well as the posting period and other related information. 
  
  Tips & Tricks: 
  It is important to ensure that the correct internal calculation key is assigned to each asset, as this will determine how the asset is depreciated. It is also important to ensure that any changes made to the internal calculation key are reflected in all relevant assets. 
  
  Related Information: 
  For more information on internal calculation keys, please refer to SAP Help documentation or contact your local SAP support team.