Lists the supplier order templates saved in Zuper for this supplier provider, newest first by default, together with the progress of each template's product import. Use it after Create Order Template to follow the background import: import_status is IN_PROGRESS while it runs and then becomes COMPLETED, PARTIAL or FAILED, and import_failures explains which products could not be imported. Data comes from Zuper, not the supplier, and has the same shape for SRS, ABC Supply and QXO; QXO templates also carry the supplier account_id they belong to. The supplier provider must be CONNECTED; otherwise the request fails with 403.