> This page is for Developer.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.bigcommerce.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.bigcommerce.com/_mcp/server.

# UpdateISellToError

GraphQL union

An error of the update.

Reference: https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-i-sell-to-error

## Definition

```graphql
union UpdateISellToError = EntityNotFoundError | ValidationError
```