> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: $w ## Namespace: wix-form-submitted-error-event ## Article: Migrate from WixFormSubmittedErrorEvent ## Article Link: https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-form-submitted-error-event/migrate-from-wix-form-submitted-error-event.md ## Article Content: # Migrate from `WixFormSubmittedErrorEvent` to `WixFormsV2` As of April 2025, [`WixFormSubmittedErrorEvent`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-form-submitted-error-event/code.md) is deprecated and any new forms created will only work with [`WixFormsV2`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-forms-v2/introduction.md). You can access the functionality of [`WixFormSubmittedErrorEvent`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-form-submitted-error-event/code.md) using [`onSubmitFailure()`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-forms-v2/on-submit-failure.md) in [`WixFormsV2`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-forms-v2/introduction.md). Old forms will only work with the old APIs: [`WixForms`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-forms/introduction.md), [`WixFormSubmitEvent`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-form-submit-event/wix-form-fields.md), [`WixFormSubmittedErrorEvent`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-form-submitted-error-event/code.md), and [`WixFormSubmittedEvent`](https://dev.wix.com/docs/velo/velo-only-apis/$w/wix-form-submitted-event/wix-form-field.md). You can see which forms are old forms and which are new forms by looking at the forms and submissions page in a site dashboard, where there's a tab for each.