--- title: "VTEX Master Data public-field restrictions: 2026-10-26 | Harbyn" description: "VTEX Master Data public-field restrictions, effective Oct 26, 2026." canonical: "https://harbyn.com/changes/vtex/2026-10-23-master-data-public-field-restrictions" last-updated: 2026-10-25 --- # VTEX Master Data public-field restrictions Markdown version of . Behavior change - VTEX. medium severity. Announced. Upcoming. Starting October 26, 2026, Master Data v1 and v2 will temporarily prevent creating new public fields or changing existing private fields to public. 1 days left: the deadline is Oct 26, 2026. ## Facts | Fact | Value | | --- | --- | | Vendor | [VTEX](https://harbyn.com/vendors/vtex.md) | | Kind | Behavior change | | Severity | medium | | Status | Announced | | Announced | Oct 23, 2026 (undated by the vendor; the day it first appeared) | | Effective | Oct 26, 2026 | | Added to Harbyn | Oct 25, 2026 | | Lead time | 1 days of warning | | Review | Reviewed by a person, extracted by a model | ## Find it in your code ```sh npx harbyn scan ``` This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses VTEX, from its packages and API hosts. Nothing leaves your machine. ## Sources Where this event comes from: the page we read, when we read it, and the hash of that snapshot. - (changelog, fetched 2026-10-23 14:15 UTC, sha256 `7593081c56e02b23fa66fac73d86b0af01313b28709bd708f4926be129dc9a25`) ## Related changes ### More from VTEX - [FastStore 4.10.0 keeps catalog and preview carts on the correct sales channel](https://harbyn.com/changes/vtex/2026-10-22-faststore-4-10-0-keeps-catalog-and-preview-carts-on-the-correct-sales-channel.md) (Behavior change, announced Oct 22, 2026) - [FastStore 4.9.2 fixes session and cart validation failures after region changes](https://harbyn.com/changes/vtex/2026-10-05-faststore-fixed-session-and-cart-validation-after-region-changes.md) (Behavior change, announced Oct 5, 2026) - [FastStore 4.9.1 returns the original StoreProduct.releaseDate value again](https://harbyn.com/changes/vtex/2026-10-02-faststore-restored-the-original-product-release-date-format.md) (Behavior change, announced Oct 2, 2026) - [VTEX Master Data API v2: schema saves return 423 Locked for 12 hours after a full reindex](https://harbyn.com/changes/vtex/2026-09-30-schema-saves-blocked-after-a-full-reindex.md) (Behavior change, announced Sep 30, 2026) ### Changes at other vendors - [SEFAZ e-invoicing (NF-e, CT-e, MDF-e): NF-e/NFC-e net product value fields and prepaid ICMS group on November 3, 2026](https://harbyn.com/changes/sefaz/2026-10-01-layout-and-validation-rules-update.md) (effective Nov 3, 2026) - [NFS-e Nacional: vAjusteBC group added in restricted production](https://harbyn.com/changes/nfse-nacional/2026-10-20-criacao-do-grupo-vajustebc.md) (announced Oct 20, 2026) - [Conta Azul: New client\_id format for new applications](https://harbyn.com/changes/contaazul/2026-10-01-novo-formato-de-client-id-para-novas-aplicacoes.md) (announced Oct 1, 2026) - [Asaas: Alteração na estrutura de URLs públicas do Asaas](https://harbyn.com/changes/asaas/2026-09-25-alteracao-na-estrutura-de-urls-publicas-do-asaas.md) (effective Sep 28, 2026) [All upcoming deadlines](https://harbyn.com/deadlines.md)