SNO: Batch Heuristic Not Working Correctly In SNO Version 12.2.5 (Doc ID 2564174.1)

Last updated on JULY 11, 2019

Applies to:

Symptoms

On : 12.2.5 version, Planning Engine

ACTUAL BEHAVIOR
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SNO model setup with batch size 10.01 and demand for 10 units per period generates incorrect batch output of 20.02 units per period when using Batch Heuristic.

EXPECTED BEHAVIOR
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In the horizon of 4 periods and for a demand of 10 units per period (that is 40 units in total) and a batch size of 10,01 units:

1) In version 12.1.3 we get a production of 10,01 per period that is 40,04 units in total. This is correct.
2) In version 12.2.5 we get a production of 20,02 per period that is 80,08 units in total for the same 40 units demand, that is an overshooting of 40,04 units. This is incorrect.

STEPS
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The issue can be reproduced at will with the following steps:
1. Open SNO model
2. Go to Solve - Configure and ensure Batch Heuristic option is ON
3. Select a solver algorithm and solve
4. Review batch arc properties and observe incorrect flow output of 20.02 units generated per period

BUSINESS IMPACT
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The issue has the following business impact:
Due to this issue, users cannot get the desired solve results as expected

Changes

Cause

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