Step 4: Demultiplexing (NextSeq 1000/2000 Sequencing v2.1)
This step is a semiautomated step.
The integration starts the step automatically and demultiplexing data from the GenerateFASTQ secondary analysis is parsed back to Clarity LIMS. The lab scientist reviews the demultiplexing result parsed into Clarity LIMS, assigns QC flags, and completes the step.
Do not add samples to the Ice Bucket or start or complete the step. The integration does this action automatically.

The following automations are configured on the step:
• | Assign Demultiplexing QC flags—Automatically assigns QC flags based on the criteria set on the step fields. |
• | Set Next Step—Automatically sets the next step to Advance and the samples complete the protocol. |

The following table lists the 12 master step fields that are configured on the Demultiplexing (NextSeq 1000/2000 Sequencing v2.1) master step.
Field Name |
Field Type |
Field Constraints/Options |
Preset Values/Additional Options and Drop-Down Items |
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Criteria 1 - Source Data Field |
Text Dropdown |
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Criteria 2 - Source Data Field |
Text Dropdown |
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Criteria 1 - Operator |
Text Dropdown |
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Criteria 2 - Operator |
Text Dropdown |
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Criteria 1 - Threshold Value |
Numeric |
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Criteria 2 - Threshold Value |
Numeric |
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Log |
Multiline Text |
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Not applicable |
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Analysis Completed Time |
Text |
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Hidden Do not delete / modify. These actions will break the integration.
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Analysis Started Time |
Text |
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Hidden Do not delete / modify. These actions will break the integration. |
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Analysis Status |
Text |
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Hidden Do not delete / modify. These actions will break the integration. |
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BSSH Analysis ID |
Text |
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Hidden Do not delete / modify. These actions will break the integration. |
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Reagent Cartridge ID |
Text |
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Do not delete / modify. These actions will break the integration. |

There are five fields defined on the Demultiplexing (NextSeq 1000/2000 Sequencing v2.1) step. The fields are used to display the demultiplexing result metrics for individual library in the sample pool.
The following table lists the global fields that are configured on the Demultiplexing (NextSeq 1000/2000 Sequencing v2.1) step.
Field Name |
Field Type |
Field Constraints/Options |
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# of >= Q30 Bases (PF) |
Numeric |
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# One Mismatch Index Reads |
Numeric |
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# Perfect Index Reads |
Numeric |
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# Reads |
Numeric |
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Mean Quality Score (PF) |
Numeric |
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Refer to NextSeq 1000/2000 Integration v2.2 Validation and Troubleshooting for details.