---
alias: user-guide-special-remove-material-from-line
tags:
- unit tracking
description: "This operation removes a material from a parent material tracked at a line step"
---

# Special Remove Material from Line

:lock: Material.**RemoveFromLine**

## Overview

This operation is used to remove a **Material** from a parent **Material** that is tracked-in (in process) at a Line. As a naming convention, the Material to be removed is called Child Material and the Material from where the Material will be removed is called Parent Material. This special operation can be used in the event of the Material not being the last one in the Parent Material Line Step structure.

## Setup

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

## Preconditions

* Both the Parent Material and Child Material:
    * Are Active and Non-Template
    * Are not on Hold or Stored
    * Do not have a *FutureAction* set
    * Are not a part of a **Pick List** or a **Transfer Order**
    * Must be in a Line **Step**

* Regarding the Child **Material**:
    * It's a Sub-Material of a TopMost **Material** that is *InProcess* at a **Resource** of processing type Line
    * It's in state *Queued* or *Processed*

* Regarding the **Resource** current processing the Parent **Material**:
    * Must be TopMost and of processing type Line
    * Must be Active and Non-Template
    * Must have the System State Up
    * The Inventory Locked must be false
    * The **Resource** *Enable SubTrackin* property must be true

## Sequence of Steps

### Step 1

1. Select a Child **Material** matching the pre-conditions outlined above. Select **Special Remove Material from Line** from the top ribbon.
2. If the TopMost of SubMaterial being detached has characteristics, you can choose to copy the Material Characteristics for the **Material** to be detached.
3. Review the information and select **Remove** to complete the transaction.

![special_remove_material_from_line][special_remove_material_from_line]

!!! info
	For more information, see the [Line Material Tracking](../../../tutorials/modules/materials-and-containers/linematerialtracking.md) tutorial.

[special_remove_material_from_line]: images/special_remove_material_from_line.png