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fix: RetrieveCohortDistribution API updated to check if a superseded by nhs number has existing record #1762
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application/CohortManager/src/Functions/Shared/Data/Database/CreateCohortDistributionData.cs
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...ication/CohortManager/src/Functions/Shared/Data/Database/ExtractCohortDistributionRecords.cs
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...ication/CohortManager/src/Functions/Shared/Data/Database/ExtractCohortDistributionRecords.cs
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Warren-Pitterson
previously approved these changes
Dec 3, 2025
Warren-Pitterson
approved these changes
Dec 3, 2025
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Approved
SamAinsworth-NHS
approved these changes
Dec 4, 2025
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Description
https://nhsd-jira.digital.nhs.uk/browse/DTOSS-11459
When a call is made to the RetrieveBSCohortDistribution API it will try to retrieve and return records that do not have a superseded by number.
If there are no records to return without a superseded by number, it retrieves records with a superseded by number. For each record it checks if an entry exists where the superseded by number is the NHS number, if an entry exists the record is added the batch to be returned via API.
Context
This change is required because currently Cohort Manager sends records to BS Select in the order they are processed. Cohort Manager can process a record with a superseded by NHS number before a record has been created with the details of the superseded by NHS Number as the NHS Numbver This causes an error in the BS Select system as they are unable to handle the supersession without the new record to transfer history to.
Type of changes
Checklist
Sensitive Information Declaration
To ensure the utmost confidentiality and protect your and others privacy, we kindly ask you to NOT including PII (Personal Identifiable Information) / PID (Personal Identifiable Data) or any other sensitive data in this PR (Pull Request) and the codebase changes. We will remove any PR that do contain any sensitive information. We really appreciate your cooperation in this matter.