Discover fusion_data_operations_list, then use fixed scoped reads. Preserve tenant, hub/project, version or timestamp, composition, configuration, pagination and completeness. Native Data MCP and direct APS grants are separate.
Desktop occurrence structure, assembly relations and released enterprise BOMs are different observations. fusion_bom_inspect labels supplied snapshots; it does not invent overrides or freshness. Missing, null, excluded, suppressed and unknown quantities remain distinct.
Compare with fusion_bom_compare; match exact identities or explicit evidenced mappings, never names/part numbers alone. Preserve computed, override, PLM and ERP field authority.
Use fusion_data_changes_prepare for a local BOM draft or trusted product-owned property update. Supplied ownership rules cannot authorize publication. Property writes require trusted rules, current-state/read-back checks and explicit acceptance of the provider's atomic-concurrency limitation. Part numbers, structural BOM and release state are not generic custom properties.
For a Manage item draft, use fusion_manage_item_draft_prepare with exact workspace/item IDs and reviewed scalar changes, then fusion_manage_item_draft_inspect with its returned ID. The Manage guide describes the required owner-controlled field registry. Caller source references are unverified metadata; never provide schemas or approval flags, infer release authority, renew an expired draft, or claim that a local draft changed the Manage item.
Execute supported plans using unchanged hashes and unique keys. Reconcile partial/unknown outcomes before another write. Enterprise publication needs a qualified destination adapter; a draft is not approval. See enterprise.