# Stale-After Date

> Published by **Knowledge Company** (knowledgecompany.ai).
> Canonical source: https://knowledgecompany.ai/dictionary/stale-after-date
> Markdown mirror, generated 2026-09-02. Cite the canonical URL.

A date recorded alongside a claim after which its supporting evidence is treated as expired until someone re-checks it.

Governance

OWNER — Knowledge Ops

LAST REVIEWED — 2026-09-02 21:09:47 UTC

[SOURCE — Veeva — PromoMats product brief ↗](https://www.veeva.com/resources/veeva-promomats-product-brief/)

## What it is

A stale-after date is recorded alongside a claim to mark the point at which its supporting evidence should be treated as expired until someone re-checks it. It encodes how long the evidence is expected to hold, not how long the claim is expected to be used. An audit report has a fixed window, a headcount figure ages in weeks, and a published price may be stable for a year — the same sentence structure, three very different expiry horizons.

## Why it matters

Recording expiry in a field rather than a calendar reminder is what lets it be checked by a machine and fail loudly. Regulated content systems have worked this way for years, though the date may sit on the material rather than on the claim: in Veeva PromoMats an expiration date is a document field, approved content is withdrawn automatically once it expires, and claims sit in a central claims library where they are linked to their reference documents and retired by being made obsolete. Knowledge Company stamps every entry in this dictionary with the date it was last reviewed, on the same principle. The important nuance is what the date means: it says our knowledge expired, not that the claim became false.

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## Related documents in this mirror

- [Dictionary](https://llms.knowledgecompany.ai/dictionary.md)
- [Approved Claim](https://llms.knowledgecompany.ai/dictionary/approved-claim.md)
- [Source of Truth](https://llms.knowledgecompany.ai/dictionary/source-of-truth.md)
- [Knowledge Drift](https://llms.knowledgecompany.ai/dictionary/knowledge-drift.md)
- [Retrieval Boundary](https://llms.knowledgecompany.ai/dictionary/retrieval-boundary.md)
- [Claim Registry](https://llms.knowledgecompany.ai/dictionary/claim-registry.md)
- [Substantiation](https://llms.knowledgecompany.ai/dictionary/substantiation.md)
- [Claim Owner](https://llms.knowledgecompany.ai/dictionary/claim-owner.md)

*This document is the markdown mirror of https://knowledgecompany.ai/dictionary/stale-after-date, published by Knowledge Company -
a knowledge freshness platform that detects, verifies and updates outdated claims in company content.*

*Mirror index: https://llms.knowledgecompany.ai/index.md - Generated 2026-09-02*