> For the complete documentation index, see [llms.txt](https://uci.sunbird.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://uci.sunbird.org/use/developer/uci-basics/schema-overview/uci-core-schema/xmessage-schema.md).

# XMessage Schema

UCI saves all conversation data in form of XMessages. These XMessages follow a certain [specification](/use/developer/uci-basics/xmessage-specification.md). These XMessage will be saved in cassandra DB. Its object is defined in [dao repository](https://uci.sunbird.org/use/developer/uci-basics/schema-overview/uci-core-schema/pages/mN86WTnKfapEwuzEiaut#2.3.-dao).

## Schema

<table><thead><tr><th width="184.43902439024393">Field</th><th width="150">Type</th><th>Description</th></tr></thead><tbody><tr><td>id</td><td>uuid</td><td>unique identification</td></tr><tr><td>userId</td><td>text</td><td>to - phone of user/admin</td></tr><tr><td>fromId</td><td>text</td><td>from - phone of user/admin</td></tr><tr><td>channel</td><td>text</td><td>channel (Eg. Whatsapp/SMS)</td></tr><tr><td>provider</td><td>text</td><td>provider (Eg. Gupshup/Netcore)</td></tr><tr><td>timestamp</td><td>timestamp</td><td></td></tr><tr><td>messageState</td><td>text</td><td>state(Eg. Replied/Sent/Read)</td></tr><tr><td>xMessage</td><td>text</td><td>xMessage XML stringyfied</td></tr><tr><td>app</td><td>text</td><td>bot name</td></tr><tr><td>auxData</td><td>text</td><td>auxilary data</td></tr><tr><td>messageId</td><td>text</td><td>id of message from provider</td></tr><tr><td>replyId</td><td>text</td><td>id of user to reply to</td></tr><tr><td>causeId</td><td>text</td><td></td></tr><tr><td>sessionId</td><td>uuid</td><td>session id of conversation</td></tr><tr><td>ownerOrgId</td><td>text</td><td>owner org id of bot</td></tr><tr><td>ownerId</td><td>text</td><td>owner id</td></tr><tr><td>botUuid</td><td>uuid</td><td>bot uuid</td></tr></tbody></table>


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