Using Update References helps resolve missing or external file links when checking assemblies into the PDM vault. The tool can automatically search library folders to match common parts, replace files manually if names differ, or import missing components directly into the vault. Once corrections are accepted, PDM updates all affected assemblies so they point to valid, vaulted files, allowing a clean check‑in with no warnings. Newly added files can then be placed into the correct workflow state and revision‑locked to keep the library organised and consistent.