Tutorial: Reprocess Limits#

Estimated time to read: 2 minutes

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

Step 2: Access Smart Table Configuration#

• Navigate to Administration

• Open Smart Tables and select:
  • SMTReprocessLimitContext

Step 3: Create Reprocess Limit Rule#

• Add a new entry

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

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)

Step 6: Attempt Reprocessing#

• Attempt to process the same material again at SMT_SPI

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.