---
pdfexport: true
module: Electronics
timetoread: True
tutorial: deepdive
alias: tutorials-reprocess-limits
glightbox: True
---

# Tutorial: Reprocess Limits

## Objective

Learn how to configure and validate reprocess limits to control how many times a material can be reprocessed at a specific step.

---

## Step 1: Define the Scenario

In this example:

- Product: **SMT_Product**
- Step: **SMT_SPI**
- Requirement:
    - Material can only be processed once
    - Reprocessing is not allowed

![Process Identification](images/practical-1.png)

---

## Step 2: Access Smart Table Configuration

- Navigate to **Administration**

![Smart Tables View](images/config-1.png)

- Open **Smart Tables** and select:
    - `SMTReprocessLimitContext`

![Open Smart Table](images/config-2.png)

---

## Step 3: Create Reprocess Limit Rule

- Add a new entry

![Add new entry to Smart Table](images/config-3.png)

- Configure the following fields:
    - **Product** = applicable product
    - **Flow** = applicable flow
    - **Step** = applicable step
    - **Maximum Reprocess Limit** = 0

![Entry View](images/practical-2.png)

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## Step 4: Understand the Configuration

- The limit applies only to **reprocessing**, not the initial processing

- Setting:
    - **Maximum Reprocess Limit = 0**

- Means:
    - First processing: allowed
    - Any subsequent reprocessing: blocked

---

## Step 5: Execute Initial Processing

- Process a material at the configured step (SMT_SPI)

![Material Traceability View](images/practical-3.png)

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## Step 6: Attempt Reprocessing

- Attempt to process the same material again at SMT_SPI

![Feedback message after trying to reprocess](images/practical-4.png)

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## Expected Result

- The system blocks the operation
- An exception is raised
- The material cannot proceed at that step

---

## Frequent Configuration Questions

### Why is reprocessing still allowed?

Verify the following:

- The configured reprocessing limit value is correct.
- The correct Product and Step combination is configured.

### Why is the reprocessing rule not being applied?

Check that the Smart Table configuration is correctly defined and active for the relevant process.

### Why am I seeing unexpected behavior with reprocessing control?

Confirm that the material is actually being reprocessed and is not undergoing its first pass through the configured step.