> ## Documentation Index
> Fetch the complete documentation index at: https://apidocs.sesametime.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Upsert employee language skill

> Assign a language to an employee or replace the level and comment of the existing assignment. The (employeeId, languageSkillId) pair in the URL is the resource identity; languageSkillId is an ISO-639 code.

<div className="endpoint-versions" data-nav-page="/api-reference-v2/core/v4/employees-employee-id-language-skills-language-skill-id-put" data-nav-group="Language Skills">
  <span className="endpoint-versions-label">Version:</span>
  <span data-version="v4" data-current>v4</span>
</div>


## OpenAPI

````yaml openapi-v2.json PUT /core/v4/employees/{employeeId}/language-skills/{languageSkillId}
openapi: 3.0.0
info:
  title: Sesame Public API v2
  description: >-
    Public API v2 — additive surface `/public/{context}/v{N}`,
    endpoint-versioned from v4
  version: 1.0.0
servers:
  - url: https://api.sesamehr.com
    description: Production
security:
  - Bearer: []
paths:
  /core/v4/employees/{employeeId}/language-skills/{languageSkillId}:
    put:
      tags:
        - Language Skills
      summary: Upsert employee language skill
      description: >-
        Assign a language to an employee or replace the level and comment of the
        existing assignment. The (employeeId, languageSkillId) pair in the URL
        is the resource identity; languageSkillId is an ISO-639 code.
      operationId: UpsertEmployeeLanguageSkill
      parameters:
        - name: employeeId
          in: path
          required: true
          schema:
            type: string
            format: uuid
        - name: languageSkillId
          in: path
          description: ISO-639 code from the catalogue served by GET /language-skills.
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpsertEmployeeLanguageSkillRequest'
      responses:
        '201':
          description: The language was assigned to the employee.
        '204':
          description: The existing assignment was updated.
        '401':
          description: Missing or invalid API key
        '403':
          description: API consumer lacks permission over the requested resource
        '422':
          description: Validation error
components:
  schemas:
    UpsertEmployeeLanguageSkillRequest:
      required:
        - level
      properties:
        level:
          type: integer
        comment:
          type: string
          nullable: true
      type: object
  securitySchemes:
    Bearer:
      type: http
      description: 'Sesame Public API consumer token (Authorization: Bearer <token>)'
      scheme: bearer

````