How to activate Knowledge Management Advanced plugin without removing the unique indexing on the kb_knowledge Number fieldIssue <!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } Installing the Knowledge Management Advanced (com.snc.knowledge_advanced) plugin is ideally done on an empty instance. An already populated KB database would require to remove the unique indexing on the knowledge number field to avoid getting the following unique key violation error: However, dropping the out-of-box unique index on a large table would not be a good idea for plugin activation. The procedure listed in the Resolution section can be followed without dropping the unique index kb_knowledge(number) from the instance: The Knowledge Management Advanced Installer plugin (com.snc.knowledge_advanced.installer) is used to activate the Knowledge Management Advanced plugin (not automatically activated with the Knowledge Management v3 application). The Knowledge Management Advanced Installer plugin performs two validation steps prior to activation: Determines if there are any active Knowledge Management v2 knowledge bases.Determines if there is a unique database index on the Number field. If a unique constraint has been added to the Number field, the plugin activation fails. Follow the instructions listed in KB0634959 to perform corrective steps to resolve the issue. The Knowledge Management Advanced plugin activates the following features: Article versioning: Enables maintaining multiple versions of a knowledge article. For more information, see Article versioning. Note: Migrate to Knowledge Management v3 completely to use article versioning. Article subscriptions: Enables managing knowledge base and knowledge article subscriptions. For more information, see Knowledge subscriptions. Note: The Knowledge Management Advanced plugin activates the Subscriptions and Activity Feed Framework plugin (com.snc.activity_subscriptions). Article quality index: Enables maintaining consistent quality of knowledge articles within a knowledge base where articles are written by various authors. For more information, see Article quality index for knowledge management.Article templates: Enables creating article templates for consistent structure of knowledge articles. For more information, see Knowledge article templates.Ownership group: Enables creating ownership groups for knowledge articles. For more information, see Ownership groups.In-context article creation: Enables creating a knowledge article from a customer service case. For more information, see Enable creating an article from a customer service case.Translation management: Enables managing translation tasks created for published knowledge articles. For more information, see Translation management. Demo data is included as part of the Knowledge Management Advanced plugin. If the validation step performed by the Knowledge Management Advanced Installer plugin completes successfully, the Knowledge Management Advanced plugin is activated automatically. However, the demo data is not included in this activation. To load the demo data, go to the Knowledge Management Advanced plugin page, select the Load Demo Data Only related link, and then select OK. Release<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } All releases Resolution<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } Navigate to System Applications > All Available Applications > All.Find the plugin using the filter criteria and search bar. You can search for the plugin by its name or ID. If you can not find a plugin, you may have to request it from ServiceNow personnel. To request a plugin, follow the steps in Request a plugin. Select Install, and then in the Activate Plugin dialog box, select Activate. NOTE: When domain separation and delegated admin are enabled in an instance, the administrative user must be in the global domain. Otherwise they will receive the following error: Application installation is unavailable because another operation is running: Plugin Activation for <plugin name>.