---
pdfexport: true
module: Electronics
timetoread: True
tutorial: deepdive
alias: tutorials-smt-partial-track-out
glightbox: True
---

# Tutorial: SMT Partial Track Out

## Objective

Learn how to automatically detach sub-materials (e.g., panels) from a lot during line flow execution, allowing them to proceed independently without waiting for the entire lot to complete.

---

## Step 0: Validate Preconditions

Before using Partial TrackOut, ensure:

- Feature is enabled:
    - `/SMT/MaterialPartialTrackOut/IsEnabled = True`

- You are working in a **Line Flow scenario** where:
    - A **lot (main material)** is in process
    - **Sub-materials (e.g., panels)** are processed in sub-resources

---

## Step 1: Configure Partial TrackOut Context

- Navigate to **Administration > Tables** and open **SMTPartialTrackOutContext**

- Add a new entry defining:
    - Product / Product Group
    - Flow / Step where Partial TrackOut applies

![SMT Partial Track Out Context ST](images/smtpartialtrackoutcontext-st.png)

> This step is mandatory — without this configuration, the feature will not trigger.

---

## Step 2: Prepare Line Flow Scenario

- Start a **lot (main material)** in a Line Flow

- Ensure:
    - The lot contains **sub-materials** (e.g., panels)
    - Sub-materials are processed in **sub-resources** within the line

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## Step 3: Process Sub-Materials

- Move the lot through the Line Flow

- Process sub-materials (panels) individually through the steps

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## Step 4: Execute Final Step of Line Flow

- When a sub-material reaches the **last step of the Line Flow**

- Perform **Track-Out** on the sub-material

- The system automatically:
    - Detaches the sub-material (panel) from the lot
    - Moves it to the **next step in the main flow**

> This happens automatically — no manual action is required.

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## Step 6: Validate Result

After Track-Out, verify:

### Sub-Material (Panel)

- Has moved to the next step in the main flow
- Is now an independent **main material**

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### Lot (Original Main Material)

- Remains in the line flow
- Continues processing remaining sub-materials

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## Expected Result

- Sub-materials exit the line flow independently
- No need to wait for the full lot to complete
- Production flow becomes more efficient and continuous

---

## Frequent Configuration Questions

### Why is the sub-material not being detached?

Check that the `SMTPartialTrackOutContext` configuration is correctly defined and associated with the process.

### Why is the feature not being triggered?

Verify that the feature is enabled by confirming that the `IsEnabled` setting is configured correctly.

### Why does the material remain in the lot after Track-Out?

Ensure that the Track-Out operation is being performed at the correct step in the process flow.

### Why am I experiencing unexpected behavior?

Confirm that the scenario is configured as a **Line Flow with sub-material processing**, as this feature is intended for that specific use case.