How does the LMDB in Solution Manager relate to the SLD, and what does the LMDB require from the SLD?

The LMDB (Landscape Management Database) in Solution Manager synchronizes its landscape data from the SLD (System Landscape Directory) — SolMan depends on both and neither can fulfill its role alone. The LMDB requires that specific CR (Component Repository) content be present and up to date in the SLD to correctly resolve patch levels and component versions.