> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://zuora.ferndocs.com/developers/api-reference/zuora-api/finance/mass-updater/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://zuora.ferndocs.com/_mcp/server. # Mass Updater ## API Docs - Mass Updater [Perform a mass action](https://zuora.ferndocs.com/developers/api-reference/zuora-api/finance/mass-updater/post-mass-updater.md) - Mass Updater [List all results of a mass action](https://zuora.ferndocs.com/developers/api-reference/zuora-api/finance/mass-updater/get-mass-updater.md) - Mass Updater [Stop a mass action](https://zuora.ferndocs.com/developers/api-reference/zuora-api/finance/mass-updater/put-mass-updater.md) ## OpenAPI Specification The raw OpenAPI 3.1 specification for this API is available at: - [OpenAPI JSON](https://zuora.ferndocs.com/openapi.json) - [OpenAPI YAML](https://zuora.ferndocs.com/openapi.yaml)