## Manage PO Shipping Information (Multiple Tracking Numbers)

We have added three new endpoints that allow you to manage the Tracking information of an existing [Purchase Order](/content/help/omnichannel-ecommerce/managing-pos/index.html). You can use these endpoints only if the [Client Setting](/content/help/omnichannel-ecommerce/settings-overview/index.html) **Enable Multiple Tracking Numbers On PO** is enabled:

- [Add PO Shipping Information](/content/developer/dev-article/add-po-shipping-information-multiple-tracking-numbers/index.html)
- [Get PO Shipping Information](/content/developer/dev-article/get-po-shipping-information-multiple-tracking-numbers/index.html)
- [Delete PO Shipping Information](/content/developer/dev-article/delete-po-shipping-information-multiple-tracking-numbers/index.html)