After upgrading "AI Agent Studio", "Now Assist Skill kit" & "Now Assist Admin" not visible with security constrains errorIssue <!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: #000000; } span { font-size: 12pt; font-family: Lato; color: #000000; } h2 { font-size: 24pt; font-family: Lato; color: black; } h3 { font-size: 18pt; font-family: Lato; color: black; } h4 { font-size: 14pt; font-family: Lato; color: black; } a { font-size: 12pt; font-family: Lato; color: #00718F; } a:hover { font-size: 12pt; color: #024F69; } a:target { font-size: 12pt; color: #032D42; } a:visited { font-size: 12pt; color: #00718f; } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } After upgrading to Yokohoma Patch 7+ or Zurich Patch 1+ release, observed the following issue symptoms, "AI Agent studio" and "Now Assist Skill Kit" are not visible with a security constraints error.Also, the custom Skills were not visible on "Now Assist Admin". Release<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: #000000; } span { font-size: 12pt; font-family: Lato; color: #000000; } h2 { font-size: 24pt; font-family: Lato; color: black; } h3 { font-size: 18pt; font-family: Lato; color: black; } h4 { font-size: 14pt; font-family: Lato; color: black; } a { font-size: 12pt; font-family: Lato; color: #00718F; } a:hover { font-size: 12pt; color: #024F69; } a:target { font-size: 12pt; color: #032D42; } a:visited { font-size: 12pt; color: #00718f; } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } Yokohoma Patch 7 or Zurich Patch 1 release onwards. Cause<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: #000000; } span { font-size: 12pt; font-family: Lato; color: #000000; } h2 { font-size: 24pt; font-family: Lato; color: black; } h3 { font-size: 18pt; font-family: Lato; color: black; } h4 { font-size: 14pt; font-family: Lato; color: black; } a { font-size: 12pt; font-family: Lato; color: #00718F; } a:hover { font-size: 12pt; color: #024F69; } a:target { font-size: 12pt; color: #032D42; } a:visited { font-size: 12pt; color: #00718f; } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } Below are the various root causes for this issue, 1. Known PRB - PRB1968410 - The Family release YP7 and ZP1 were not compatible with "Now Assist Admin Console" store app version 6.6.4, but in those family releases, the checkAccessForAssetSubscription method was invoked in the code, which was only available in "Now Assist Admin Console" store app version 6.6.4+ onwards. 2. Known PRB - PRB1965167 - "Now Assist AI Agents" store app changes were released in 5.3.0+ version to include ACL to check the subscription/entitlement status of Now Assist via invoking checkAccessForAssetSubscription() method. This method definition was introduced in "Now Assist Admin Console" store app version 6.6.4+ onwards. Due to this PRB, the dependency between versions of "Now Assist AI Agents" store app and "Now Assist Admin Console" store app were not strictly enforced. Some instances ended up in a situation where the "Now Assist AI Agents" store app was updated to 5.3.0, while "Now Assist Admin Console" remained at a version lower than 6.6.4, causing the issue symptoms. 3. There is an issue with the Now Assist subscription/entitlement contract. 4. Specifically, when a customer upgrades from Xanadu to Yokohama or Zurich release, after the upgrade, one of the daily scheduled job called "Licensing Engine" runs, and it populates the subscription_has_family table with the record having "application family" = "Now Assist for Fulfiller" based on the Now Assist entitlement of the instance. Hence, after the upgrade, until this scheduled job completes, we will experience the above mentioned issue symptoms. Resolution<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: #000000; } span { font-size: 12pt; font-family: Lato; color: #000000; } h2 { font-size: 24pt; font-family: Lato; color: black; } h3 { font-size: 18pt; font-family: Lato; color: black; } h4 { font-size: 14pt; font-family: Lato; color: black; } a { font-size: 12pt; font-family: Lato; color: #00718F; } a:hover { font-size: 12pt; color: #024F69; } a:target { font-size: 12pt; color: #032D42; } a:visited { font-size: 12pt; color: #00718f; } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } Based on the root cause applicable to your case, you can apply one of the workarounds. 1. To resolve PRB1968410, upgrade to YP8 or ZP2 and update the Now Assist family plugin, which will bring the "Now Assist Admin Console" plugin to the latest release, and make sure the "Now Assist Admin Console" plugin is upgraded to 6.6.4+ version. 2. To resolve PRB1965167, update the "Now Assist Admin Console" plugin to the latest version via the following steps, Go to "Application Manager" (System Definition --> Plugins).Click the 'Sync now' button (displayed on the right side of the screen) to sync the latest app versions available.Search for 'sn_nowassist_admin'. If an update is available, click 'Proceed to update' and update "Now Assist Admin Console" (sn_nowassist_admin) store app to version 6.6.4 or above.Verify that the Now Assist Skill Kit or AI Agent Studio can be opened without the security constraints error message.If the Security Constraints error message is displayed even after "Now Assist Admin Console" (sn_nowassist_admin) store app being on the latest version, reach out to ServiceNow Customer Support by opening a case. 3. Reach out to ServiceNow Customer Support by opening a case to verify the Now Assist subscription/entitlement contract. 4. When the issue was observed after the Xanadu to Yokohama/Zurich upgrade, make sure the "Licensing Engine" scheduled job executed successfully after the upgrade completed. After the "Licensing Engine" scheduled Job, if the issue still persists, then make sure the "Now Assist Admin Console" plugin is updated to the latest version as per the above steps. After this, if the issue persists, then reach out to ServiceNow Customer Support by opening a case.