One of the most frequent sources of confusion after migrating from ECC to S/4HANA is a change in planned depreciation values. The asset master looks identical, the depreciation key is the same, and yet the numbers differ. In many cases, the cause is not a configuration error or a data migration issue — it is a deliberate change in how S/4HANA calculates depreciation.

SAP Note 3221374 documents the key differences in depreciation calculation logic between ECC and S/4HANA. This post walks through each of them in plain language so you know what to expect and how to handle them.

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