Azure Digital Twins Jobs API for bulk import is now in GA release. With this API, you can ingest large twin graphs into Azure Digital Twins with enriched logging and higher throughput, which in turn enables simulation scenarios, faster setup of new instances and automating of data import workflows into your twin graph. This eliminates the need for multiple API requests to ingest a large number of entities (i.e. models, twins and relationships) and the need for handling errors and retries across these multiple requests.
To learn more about this feature, please visit the doc page or check out this blog post.