Mavenlink Timesheet Submissions API

Timesheet Submissions hold a set of time entries for a specified week, and can be approved, rejected, or canceled. You can enable timesheet submissions and approval in your [project settings](https://knowledge.kantata.com/hc/en-us/articles/204346530#Financials). Once enabled, time entries must be approved through a Timesheet Submission before it is invoiceable. **Note**: Each Timesheet Submission can only be associated with a single project. So when a timesheet is submitted through the UI with time entries for multiple projects, a separate Timesheet Submission object is created for each project in the backend. This section contains endpoints to approve, reject, or cancel a single timesheet submission. To approve, reject, or cancel multiple timesheet submissions at once, see [Timesheet Approvals](/tag/Timesheet-Approvals), [Timesheet Cancellations](/tag/Timesheet-Cancellations), and [Timesheet Rejections](/tag/Timesheet-Rejections).

Operations 6

GET /timesheet_submissions Fetching a list of Timesheet Submissions #
POST /timesheet_submissions Create a Timesheet Submission #
GET /timesheet_submissions/{id} Fetching a single Timesheet Submission #
PUT /timesheet_submissions/{id}/approve Approve a Single Timesheet Submission #
PUT /timesheet_submissions/{id}/cancel Cancel a Single Timesheet Submission #
PUT /timesheet_submissions/{id}/reject Reject a Single Timesheet Submission #

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OpenAPI Specification

mavenlink-timesheet-submissions-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  version: 1.0.0
  title: Kantata OX API Documentation Timesheet Submissions API
  description: Kantata OX's API provides access to the majority of Kantata OX's data model.
  termsOfService: https://www.kantata.com/terms-of-use
  contact:
    name: Kantata OX Support
    url: https://knowledge.kantata.com/hc/en-us
  license:
    name: COPYRIGHT © 2026 Kantata, Inc.
    url: https://www.kantata.com/terms-of-use
  x-logo:
    url: https://theme.zdassets.com/theme_assets/56104/04e93064d309f75d054b8cee885d1ea51e9be8f7.png
    backgroundColor: '#FFFFFF'
    altText: Kantata OX API Documentation
    href: https://developer.kantata.com
servers:
- url: https://api.mavenlink.com/api/v1
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/mavenlink/refs/heads/main/openapi/mavenlink-timesheet-submissions-api-openapi.yml