# Objects and IDs

### <mark style="color:blue;">#SR ID</mark> : Shipment Request

A shipper generates **1** Shipment Request. This last, as known as booking, is identified with an *<mark style="color:blue;">#SR ID</mark>*.

### <mark style="color:orange;">#QR ID</mark> : Quote Request

If there is a process of quotation, the platform generates as many quote requests as there are carriers in the quotation. So **1** *<mark style="color:blue;">#SR ID</mark>* can be linked to **0** *<mark style="color:orange;">#QR ID</mark>* (No quotation process involved) or to **n** *<mark style="color:orange;">#QR IDs</mark>* (Depending on the number of carriers that are involved in the quotation).

### <mark style="color:purple;">#SH ID</mark> : Shipment

If **1** Shipment Request (*<mark style="color:blue;">#SR ID</mark>*) gets confirmed by carrier, it generates at least **1** shipment identified with its *<mark style="color:purple;">#SH ID</mark>*.

For some reasons, the Shipment Request (*<mark style="color:blue;">#SR ID</mark>*) does not always get confirmed. In such a case, there is **0** shipment (*<mark style="color:purple;">#SH ID</mark>*) created.

In a *Multi-containers* or *Multi-shipments* request, **1** Shipment Request (*<mark style="color:blue;">#SR ID</mark>*) generates more than **1** and up to **n** shipments (*<mark style="color:purple;">#SH IDs</mark>*).

### <mark style="color:red;">#TP ID</mark> : Tracking Point

**1** Shipment (*<mark style="color:purple;">#SH ID</mark>*) generates at least **2** Tracking Points (<mark style="color:red;">#TP ID</mark>): Pickup TP and Delivery TP. But there can be many other TPs.

### Tree Structure

<figure><img src="/files/FkGqxPZv0iAeirI80QrV" alt=""><figcaption></figcaption></figure>


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