---
search:
  tags:
    - Campus Management/Study programs
    - PATCH
seo:
  description: >-
    Partial update of cohort fields. When updating dates, the… Reference for the
    PATCH /study-programs/{id}/cohorts/{cohortId} endpoint in the Fuxam API v4.
sidebar:
  label: Update a cohort
  badge: PATCH
title: Update a cohort
type: openapi-operation
---
Partial update of cohort fields. When updating dates, the effective range (merged with existing values for omitted fields) must have `startDate` strictly before `endDate` at minute precision. Cohort dates are compared at minute precision (matching the dashboard). Returns `422` when both fall in the same minute (`startDate and endDate must not be in the same minute`) or when `startDate` is after `endDate` at minute level (`startDate must be before endDate`). Returns summary fields — use GET for full detail with members and curriculum structure. Scoped to your integration's institution via Basic Auth credentials.

`PATCH /study-programs/{id}/cohorts/{cohortId}`