---
title: "Rejects a batch of pending or approved timesheet entries by their TimeSheetEntryIDs. Invoiced or paid entries cannot be rejected. Caller must have the Timesheet Approver role and permission to reject each specific entry. By default sends a rejection notification email per affected timesheet user; set SendNotifications=false to suppress."
method: POST
path: "/api/Timesheets/Reject"
tags: ["TimesheetApproval"]
---

# Rejects a batch of pending or approved timesheet entries by their TimeSheetEntryIDs. Invoiced or paid entries cannot be rejected. Caller must have the Timesheet Approver role and permission to reject each specific entry. By default sends a rejection notification email per affected timesheet user; set SendNotifications=false to suppress.

`POST /api/Timesheets/Reject`

## Request body

- TimesheetRejectionRequest — Request body for rejecting a batch of timesheet entries by their IDs.
  - `TimeSheetEntryIDs` integer[] — (Required) List of TimeSheetEntryIDs to reject. 1-500 unique positive integers.
  - `RejectionReason` string — (Optional) Free-text rejection reason included in the rejection notification email. Max 1000 characters.
  - `SendNotifications` boolean — (Optional) When true (default), sends the standard rejection notification email to each affected timesheet user. Set to false to suppress emails.

## Response `200`

Returns a summary and per-entry results.

- TimesheetApprovalBatchResponse — Response envelope for batch approve and reject endpoints.
  - `Summary` TimesheetApprovalSummary — Aggregated counts for a batch approve or reject request.
    - `Requested` integer — Number of TimeSheetEntryIDs supplied in the request.
    - `Processed` integer — Number of entries the server inspected (always equals Requested).
    - `Succeeded` integer — Number of entries that successfully transitioned to the target status.
    - `AlreadyInTargetState` integer — Number of entries that were already in the target status.
    - `Failed` integer — Number of entries that could not be processed (forbidden, not found, ineligible, invoiced/paid, etc).
  - `Results` TimesheetApprovalResultItem[] — One result entry per supplied TimeSheetEntryID, in the same order as the request.
    - `TimeSheetEntryID` integer — The TimeSheetEntryID supplied by the caller.
    - `Status` string — Result status: Approved, Rejected, AlreadyApproved, AlreadyRejected, or Failed.
    - `ActedByUserID` integer — UserID of the caller, populated only when the status changed as a result of this request.
    - `ActedAt` string, date-time — UTC timestamp of the state change, populated only when the status changed as a result of this request.
    - `ErrorCode` string — Machine-readable error code when Status=Failed.
    - `Message` string — Human-readable failure message when Status=Failed.

## Other responses

- `400` — Bad Request - missing/invalid TimeSheetEntryIDs or reason too long.
- `401` — Unauthorized.
- `403` — Forbidden - caller lacks the Timesheet Approver role.

---

[API](https://skmtc.net/avaza/apis/avaza-api-documentation.md) · [All operations](https://skmtc.net/avaza/apis/avaza-api-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/avaza/avaza-api-documentation/versions/1eeadf750514/schema)