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Unified Supply Chain Assay Web

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Yield constraints

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  • Last UpdatedAug 14, 2026
  • 1 minute read

The Yield Constraint page shows absolute product limits as well as warning ranges for production

The Yield Constraints branch allows limits to be set for the production of each refinery product. For each product limits can be set:

  • Constrain Min - at least this volume of product must be produced

  • Warning Min - if an amount of product less than the limit is produced, a warning is generated

  • Warning Max - if an amount of product greater than the limit is produced, a warning is generated

  • Constrain Max - at most this volume of product can be produced

The list of available products is inherited from the Product Specifications. Any products active in the specifications grid will appear in the constraints list. To change the set of products to use a different specifications grid use the Grade Names drop-down menu and select the required set of product specifications.