---
alias: user-guide-dock-container
description: "This documentation details the process of coupling a container with a load port resource"
---

# Dock Container

:lock: Container.**Dock**

## Overview

This operation is used to couple a **Container** with a **Resource** of type *LoadPort*.

## Setup

No special setup is required other than to meet the preconditions of the transaction.

## Preconditions

* The **Container** exists, it is Active and Available.
* The **Container** ResourceAssociationType must be None.
* The **Resource** exists, it is Active and has the ResourceProcessingType property set to LoadPort.
* The **Resource** and **Container** are in the same **Facility**.
* The **Resource** PositionUnitType is of type **Container**, and the Resource Container Type matches the Container Type.
* The **Resource** must have free positions.
* If the **Container** PositionUnitType is **Container**, the **Container** must be Topmost, that is, it must not be contained in another **Container**.
* If the **Resource** processing type is Process:
    * The Has Resource Locations property must be `true` and the Resource Location must not already be in use.
    * The **Container** must have PositionUnitType set to **Resource** and contain only **Resources** of processing type ConsumableFeed.
    * The **Container** TotalPositions property must be less or equal to PositionsCount property of the Resource Location into which the **Container** is being docked.
* The location into which the **Container** is being docked must be a valid Resource Location. Additionally, that Resource Location must not already be in use (via the Resource Container relation), and the **Resource** to which the Resource Location belongs must have a processing type corresponding to Process.

## Sequence of Steps

### Step 1

1. Select the **Resource** in which the **Container** will be docked.  
2. If a state model is defined for the **Container**, it is possible to change the state of the **Container**. If the selected state transition contains lookup reasons, it is necessary to select the reason, as well.
3. Optionally, enter a comment.
4. Select **Dock** to complete the operation.

![Screenshot showing a dock container in a graphical user interface.](images/dock_container.png)