Changes to Bulk upsert items masterdata. Accepts a JSON array of items. Items are matched by `code` — existing items are updated, new ones are created. Items missing `code` or `name` are silently skipped; validate your payload before sending. Unit identifiers (`inventUnitId`, barcode `unit`) are normalised to lowercase and auto-created if they do not exist. The server processes large arrays in internal batches of 5 000 items. Endpoint timeout is 5 minutes.

removed the request property items/purchasePrice (media type: application/json-patch+json; x-api-version=1.0)

removed the request property items/purchasePrice (media type: application/json; x-api-version=1.0)

removed the request property items/purchasePrice (media type: text/json; x-api-version=1.0)

removed the request property items/purchasePrice (media type: application/*+json; x-api-version=1.0)

removed the request property items/salesPrice (media type: application/json-patch+json; x-api-version=1.0)

removed the request property items/salesPrice (media type: application/json; x-api-version=1.0)

removed the request property items/salesPrice (media type: text/json; x-api-version=1.0)

removed the request property items/salesPrice (media type: application/*+json; x-api-version=1.0)