# External Order Number API Endpoints to support External Order Numbers (EONs) ## Operations - [Issues a new globally unique External Order Number (EON). The number of issuing EONs is limited to 3 per subject.](https://bump.sh/mark/doc/labres/operation/operation-post-orders.md) - [returns the current status of a given lab order](https://bump.sh/mark/doc/labres/operation/operation-get-orders-parameter.md) - [Updates an order with the notification id](https://bump.sh/mark/doc/labres/operation/operation-put-orders-parameter.md) [Powered by Bump.sh](https://bump.sh)