# Shopify POS UI Extensions SmartGrid API removed host object

Status: search-observed
Product: Shopify POS UI Extensions
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/shopify-pos-ui-extensions-smartgrid-api-removed-host-object
Machine JSON: https://gitdocs.org/api/fixes/shopify-pos-ui-extensions-smartgrid-api-removed-host-object.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

Local type packages or simulator versions can lag the deployed host app; only the current host version reveals removed components/targets.

## Fix

```
Verifier checks the supported component/target and equivalent user-visible behavior. Assert equivalent rendered interaction in the current host.
```

## Avoid

- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.

## Observed Codex Queries

- Shopify POS UI Extensions SmartGrid API removed host object
- site:shopify.dev/docs/api/pos-ui-extensions SmartGrid
- "smartGridApi" shopify
- Shopify POS UI extensions Smart Grid tile API
- Shopify POS UI extensions API host object no longer present migration
- "Smart Grid" "Shopify POS"
- "SmartGridApi"
- Shopify POS UI extensions targets pos.home.tile.render
- https://shopify.dev/docs/api/pos-ui-extensions
- 'SmartGrid' in https://shopify.dev/docs/api/pos-ui-extensions

## Sources

- Shopify POS UI Extensions 2025-01 update: https://shopify.dev/changelog/pos-ui-extensions-2025-01-update
- Official reference opened by Codex: https://shopify.dev/docs/api/pos-ui-extensions