Map fixed asset classes onto D365 asset groups and posting profiles, validate every depreciation book against its statutory purpose, and treat maintenance and enterprise asset management as a scope question rather than an assumption.
Fixed assets is a well-behaved module in this path, and enterprise asset management is a scope question the source package does not answer. Both statements deserve to be made openly, because the module reads very differently depending on which one applies.
The structural translation is straightforward and the decomposition is familiar from earlier modules.
This is the part of the module most likely to produce an unpleasant discovery, and the source instruction points straight at it: validate each depreciation book and each tax or statutory requirement.
An asset migration has to reproduce three things, and the third is the one that gets missed.
The asset register is a place where history accumulates visibly, and the archive rule applies as it does elsewhere.
Here the module changes character, because there is no source evidence to build on.
The fixed asset posting mapping is high confidence and the depreciation basis inventory is not. How many bases an estate maintains, and where, is a discovery finding with a real chance of surprise.
Fixed assets translate well. The source class carries grouping, defaulting and account selection; the target splits those into asset groups and posting profiles keyed on group and Book, which gives exactly the granularity a second depreciation basis needs.