---
title: "Assistant and API Messages"
description: "Confirmation tokens, dry runs, search refusals, value-help answers and sign-in refusals an assistant or an integration can report."
source: "https://help.rikaiso.com/public-cloud/2026.2/messages-assistants"
edition: "public-cloud"
editionLabel: "S/4HANA Public Cloud"
version: "2026.2"
latest: true
language: "en"
section: "Messages and Troubleshooting"
updated: "2026-11-05"
---

# Assistant and API Messages

> Confirmation tokens, dry runs, search refusals, value-help answers and sign-in refusals an assistant or an integration can report.

> **Draft brief for authors.** Table: code · shown as · meaning · fix.

**Page type:** Reference · **Audience:** Business user, Administrator

**Codes:** CONFIRM_TOKEN_MISMATCH · CONFIRM_TOKEN_EXPIRED · CONFIRM_TOKEN_INVALID · confirmation required (a dry run) · MDM_FIND_FILTER_REQUIRED · MDM_FIND_OPERATOR_* · MDM_FIND_FIELD_NOT_* · MDM_FIELD_NOT_IN_SYSTEM · MDM_FIELD_NOT_FILTERABLE · MDM_SEARCH_NOT_SUPPORTED · FIELD_VALUES_SOURCE_* and `fallbackReason` of a value help · TASK_NOT_FOUND / TASK_DELETED · sign-in and origin refusals (401, 403 for a client-credentials token where a person is needed).

**Related information:** `safe-use-with-assistants`, `assistant-troubleshooting`, `reading-assistant-answers`.

**Source in the product repository:** `docs/headless-api.md` §2, `i18n/i18n.properties`.