zulip/templates/zerver/help/import-data-from-slack.md

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# Import data from Slack (beta)
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Zulip supports importing data from Slack, including users, channels,
messages, attachments, avatars, custom emoji, and emoji reactions.
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!!! warn ""
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These instructions require shell access to the Zulip server. If you'd like
to import a Slack organization into the hosted zulipchat.com service,
contact support@zulipchat.com.
1. [Export your Slack data](https://my.slack.com/services/export). You will
receive a zip file `slack_data.zip`.
!!! warn ""
**Note:** Only Slack owners and admins can export data from Slack.
See Slack's
[guide to data exports](https://get.slack.help/hc/en-us/articles/201658943-Export-data-and-message-history)
for more information.
2. [Generate a Slack API token](https://api.slack.com/custom-integrations/legacy-tokens).
### Import into a new Zulip instance
Log in to your Zulip server as the `zulip` user. Run the following
commands, replacing `<token>` with the value generated above:
```
cd ~/zulip
./manage.py convert_slack_data slack_data.zip --token <token> --output converted_slack_data
./manage.py import --destroy-rebuild-database '' converted_slack_data
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```
!!! warn ""
**Warning:** This will destroy all existing data in your Zulip instance.
### Import into an existing Zulip instance
Log in to your Zulip server as the `zulip` user. Run the following
commands, replacing `<token>` with the value generated above, and
`<subdomain>` with the subdomain of the URL you'd like for your imported
Zulip organization.
```
cd ~/zulip
./manage.py convert_slack_data slack_data.zip --token <token> --output converted_slack_data
./manage.py import --import-into-nonempty <subdomain> converted_slack_data
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```
## Caveats
- Slack doesn't export private channels or direct messages unless you pay
for Slack Plus or contact Slack support. See
[Slack's documentation](https://get.slack.help/hc/en-us/articles/204897248-Guide-to-Slack-import-and-export-tools)
for more details.
- (Slack Plus import) Private channels and direct messages are currently
not imported. We expect to address this in a future revision.
- (Slack Plus import) Message edit history is currently not imported.
- Slack doesn't export user settings or organization settings, so
you'll need to configure these manually.
- User phone numbers and custom user profile fields are not currently
imported. We expect to address this in a future revision.
- Permission hierarchy:
Slack's `Primary owner`, `owner`, and `admin` are mapped to Zulip's `Organization admin`.
Slack's `Member`, `restricted`, and `ultra restricted` are mapped to regular Zulip users.
`Channel creators` have no special permissions in Zulip.
- The "joined #channel_name" messages are not imported.
- The import tool does not support simultaneous bold and italic
formatting of a word; we expect to address this in a future revision.