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It simplifies metadata management by ensuring consistency and reducing the manual effort required for documenting data assets to aid
in Data Governance &amp; Compliance along with Data Discovery.</p><p>This feature is enabled by default in Open Source DataHub.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="capabilities">Capabilities<a href="#capabilities" class="hash-link" aria-label="Direct link to Capabilities" title="Direct link to Capabilities"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="datahub-core-open-source">DataHub Core (Open Source)<a href="#datahub-core-open-source" class="hash-link" aria-label="Direct link to DataHub Core (Open Source)" title="Direct link to DataHub Core (Open Source)"></a></h3><ul><li><strong>Column-Level Docs Propagation</strong>: Automatically propagate documentation to downstream columns and sibling columns that are derived or dependent on the source column.</li><li><strong>(Coming Soon) Asset-Level Docs Propagation</strong>: Propagate descriptions to sibling assets.</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="datahub-cloud">DataHub Cloud<a href="#datahub-cloud" class="hash-link" aria-label="Direct link to DataHub Cloud" title="Direct link to DataHub Cloud"></a></h3><ul><li>Includes all the features of Open Source.</li><li><strong>Propagation Rollback (Undo)</strong>: Offers the ability to undo any propagation changes, providing a safety net against accidental updates.</li><li><strong>Historical Backfilling</strong>: Automatically backfills historical data for newly documented columns to maintain consistency across time.</li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="comparison-of-features">Comparison of Features<a href="#comparison-of-features" class="hash-link" aria-label="Direct link to Comparison of Features" title="Direct link to Comparison of Features"></a></h3><table><thead><tr><th>Feature</th><th>Open Source</th><th>DataHub Cloud</th></tr></thead><tbody><tr><td>Column-Level Docs Propagation</td><td>✔️</td><td>✔️</td></tr><tr><td>Asset-Level Docs Propagation</td><td>✔️</td><td>✔️</td></tr><tr><td>Downstream Lineage + Siblings</td><td>✔️</td><td>✔️</td></tr><tr><td>Historical Backfilling</td><td></td><td>✔️</td></tr></tbody></table><h2 class="anchor anchorWithStickyNavbar_LWe7" id="enabling-documentation-propagation">Enabling Documentation Propagation<a href="#enabling-documentation-propagation" class="hash-link" aria-label="Direct link to Enabling Documentation Propagation" title="Direct link to Enabling Documentation Propagation"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="in-open-source">In Open Source<a href="#in-open-source" class="hash-link" aria-label="Direct link to In Open Source" title="Direct link to In Open Source"></a></h3><p>Notice that the user must have the <code>Manage Ingestion</code> permission to view and enable the feature.</p><ol><li><strong>Navigate to Settings</strong>: Click on the &#x27;Settings&#x27; gear in top navigation bar.</li></ol><p align="left"><img loading="lazy" width="15%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/oss/settings-nav-link.png" class="img_ev3q"></p><ol start="2"><li><strong>Navigate to Features</strong>: Click on the &#x27;Features&#x27; tab in the left-hand navigation bar.</li></ol><p align="left"><img loading="lazy" width="20%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/oss/features-settings-link.png" class="img_ev3q"></p><ol start="3"><li><strong>Enable Documentation Propagation</strong>: Locate the &#x27;Documentation Propagation&#x27; section and toggle the feature to enable it for column-level and asset-level propagation.
Currently, Column Level propagation is supported, with asset level propagation coming soon.</li></ol><p align="left"><img loading="lazy" width="40%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/oss/docs-propagation/feature-flags.png" class="img_ev3q"></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="in-datahub-cloud">In DataHub Cloud<a href="#in-datahub-cloud" class="hash-link" aria-label="Direct link to In DataHub Cloud" title="Direct link to In DataHub Cloud"></a></h3><ol><li><strong>Navigate to Automations</strong>: Click on &#x27;Govern&#x27; &gt; &#x27;Automations&#x27; in the navigation bar.</li></ol><p align="left"><img loading="lazy" width="20%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/saas/automations-nav-link.png" class="img_ev3q"></p><ol start="2"><li><strong>Create An Automation</strong>: Click on &#x27;Create&#x27; and select &#x27;Column Documentation Propagation&#x27;.</li></ol><p align="left"><img loading="lazy" width="30%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/saas/docs-propagation/automation-type.png" class="img_ev3q"></p><ol start="3"><li><strong>Configure Automation</strong>: Fill in the required fields, such as the name, description, and category. Finally, click &#x27;Save and Run&#x27; to start the automation</li></ol><p align="left"><img loading="lazy" width="30%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/saas/docs-propagation/automation-form.png" class="img_ev3q"></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="propagating-for-existing-assets-datahub-cloud-only">Propagating for Existing Assets (DataHub Cloud Only)<a href="#propagating-for-existing-assets-datahub-cloud-only" class="hash-link" aria-label="Direct link to Propagating for Existing Assets (DataHub Cloud Only)" title="Direct link to Propagating for Existing Assets (DataHub Cloud Only)"></a></h2><p>In DataHub Cloud, you can back-fill historical data for existing assets to ensure that all existing column descriptions are propagated to downstreams
when you start the automation. Note that it may take some time to complete the initial back-filling process, depending on the number of assets and the complexity of your lineage.</p><p>To do this, navigate to the Automation you created in Step 3 above, click the 3-dot &quot;more&quot; menu:</p><p align="left"><img loading="lazy" width="15%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/saas/automation-more-menu.png" class="img_ev3q"></p><p>and then click &quot;Initialize&quot;.</p><p align="left"><img loading="lazy" width="15%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/saas/automation-initialize.png" class="img_ev3q"></p><p>This one-time step will kick off the back-filling process for existing descriptions. If you only want to begin propagating
descriptions going forward, you can skip this step.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="viewing-propagated-descriptions">Viewing Propagated Descriptions<a href="#viewing-propagated-descriptions" class="hash-link" aria-label="Direct link to Viewing Propagated Descriptions" title="Direct link to Viewing Propagated Descriptions"></a></h2><p>Once the automation is enabled, you&#x27;ll be able to recognize propagated descriptions as those with the thunderbolt icon next to them:</p><p>The tooltip will provide additional information, including where the description originated and any intermediate hops that were
used to propagate the description.</p><p align="left"><img loading="lazy" width="50%" src="https://raw.githubusercontent.com/datahub-project/static-assets/main/imgs/automation/oss/docs-propagation/view-propagated-docs.png" class="img_ev3q"></p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="slackUtm_uoBr"><div class="slackUtm_uoBr"><hr>Need more help? Join the conversation in <a href="https://datahub.com/slack?utm_source=docs&amp;utm_medium=footer&amp;utm_campaign=docs_footer&amp;utm_content=docs/automations/docs-propagation">Slack!</a></div></div><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/datahub-project/datahub/blob/master/docs/automations/docs-propagation.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_VsjB"></div></div></footer><div class="feedbackWrapper_mUHF"><div class="feedbackWidget_PX4d"><div class="feedbackButtons_wn3V"><strong>Is this page helpful?</strong><div><button class="feedbackButton_UgQs"><span role="img" aria-label="like" class="anticon anticon-like"><svg viewBox="64 64 896 896" focusable="false" data-icon="like" width="1em" height="1em" fill="currentColor" aria-hidden="true"><path d="M885.9 533.7c16.8-22.2 26.1-49.4 26.1-77.7 0-44.9-25.1-87.4-65.5-111.1a67.67 67.67 0 00-34.3-9.3H572.4l6-122.9c1.4-29.7-9.1-57.9-29.5-79.4A106.62 106.62 0 00471 99.9c-52 0-98 35-111.8 85.1l-85.9 311H144c-17.7 0-32 14.3-32 32v364c0 17.7 14.3 32 32 32h601.3c9.2 0 18.2-1.8 26.5-5.4 47.6-20.3 78.3-66.8 78.3-118.4 0-12.6-1.8-25-5.4-37 16.8-22.2 26.1-49.4 26.1-77.7 0-12.6-1.8-25-5.4-37 16.8-22.2 26.1-49.4 26.1-77.7-.2-12.6-2-25.1-5.6-37.1zM184 852V568h81v284h-81zm636.4-353l-21.9 19 13.9 25.4a56.2 56.2 0 016.9 27.3c0 16.5-7.2 32.2-19.6 43l-21.9 19 13.9 25.4a56.2 56.2 0 016.9 27.3c0 16.5-7.2 32.2-19.6 43l-21.9 19 13.9 25.4a56.2 56.2 0 016.9 27.3c0 22.4-13.2 42.6-33.6 51.8H329V564.8l99.5-360.5a44.1 44.1 0 0142.2-32.3c7.6 0 15.1 2.2 21.1 6.7 9.9 7.4 15.2 18.6 14.6 30.5l-9.6 198.4h314.4C829 418.5 840 436.9 840 456c0 16.5-7.2 32.1-19.6 43z"></path></svg></span></button><button class="feedbackButton_UgQs"><span role="img" aria-label="dislike" class="anticon anticon-dislike"><svg viewBox="64 64 896 896" focusable="false" data-icon="dislike" width="1em" height="1em" fill="currentColor" aria-hidden="true"><path d="M885.9 490.3c3.6-12 5.4-24.4 5.4-37 0-28.3-9.3-55.5-26.1-77.7 3.6-12 5.4-24.4 5.4-37 0-28.3-9.3-55.5-26.1-77.7 3.6-12 5.4-24.4 5.4-37 0-51.6-30.7-98.1-78.3-118.4a66.1 66.1 0 00-26.5-5.4H144c-17.7 0-32 14.3-32 32v364c0 17.7 14.3 32 32 32h129.3l85.8 310.8C372.9 889 418.9 924 470.9 924c29.7 0 57.4-11.8 77.9-33.4 20.5-21.5 31-49.7 29.5-79.4l-6-122.9h239.9c12.1 0 23.9-3.2 34.3-9.3 40.4-23.5 65.5-66.1 65.5-111 0-28.3-9.3-55.5-26.1-77.7zM184 456V172h81v284h-81zm627.2 160.4H496.8l9.6 198.4c.6 11.9-4.7 23.1-14.6 30.5-6.1 4.5-13.6 6.8-21.1 6.7a44.28 44.28 0 01-42.2-32.3L329 459.2V172h415.4a56.85 56.85 0 0133.6 51.8c0 9.7-2.3 18.9-6.9 27.3l-13.9 25.4 21.9 19a56.76 56.76 0 0119.6 43c0 9.7-2.3 18.9-6.9 27.3l-13.9 25.4 21.9 19a56.76 56.76 0 0119.6 43c0 9.7-2.3 18.9-6.9 27.3l-14 25.5 21.9 19a56.76 56.76 0 0119.6 43c0 19.1-11 37.5-28.8 48.4z"></path></svg></span></button></div></div></div></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/features/feature-guides/access-management"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Access Management</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/automations/glossary-term-propagation"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Glossary Term Propagation Automatio
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