CMS to Service Portal transition

  • Release version: Zurich
  • Updated July 31, 2025
  • 5 minutes to read
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    Summary of CMS to Service Portal transition

    This guide helps ServiceNow customers transition from CMS (Content Management System) to Service Portal, focusing on modifying CMS and Service Catalog implementations for Service Portal adoption. It highlights differences, limitations, and necessary adjustments to ensure a smooth user experience, especially in a mobile environment. Customers should also review mobile client GlideForm scripting and migration considerations.

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    Key Transition Considerations and Component Support

    • Data Lookups: Client-side data lookups are unsupported in Service Portal, but server-side lookups still apply when records are submitted or updated. This limitation may not impact requester-only CMS implementations.
    • Content Blocks and UI Macros: Both use Jelly scripting and aren’t supported in Service Portal. They are replaced by widgets, which are customizable and cover most use cases; custom widgets can be developed using AngularJS.
    • UI Actions: Server-side UI actions are supported except for setRedirectURL(), which must be refactored because Service Portal handles redirection differently. Client-side UI actions are ignored.
    • Catalog Client Scripts: Only scripts marked for Mobile/Service Portal or All UI types are supported; Desktop-only scripts are not. Synchronous GlideAjax calls (e.g., getXMLWait()) are unsupported and must be replaced with asynchronous methods.
    • UI Policies: Scripted UI policies must use APIs supported in Service Portal; unsupported APIs need removal.
    • Service Catalog Variables: Supported except for UI Macros and UI Pages variable types, and validation scripts. Help text is always expanded, and List Collector variables appear as choice lists rather than slushbuckets. Testing is recommended to verify display behavior.
    • Order Guides: Rendered via the Order Guide widget; large guides may cause performance issues and should be simplified or split. An iFrame rendering workaround is available temporarily.
    • Record Producers: Supported with some differences, such as ignoring catalog item sort order and not honoring time zones for date values. Testing in Service Portal is advised.
    • Login Scenarios and Redirects: CMS CMSEntryPage scripts are replaced by SPEntryPage script includes and system properties. Redirects are unsupported and login behaviors should be configured accordingly.
    • Service Catalog Forms: Rendered within widgets in a two-column layout; complex forms with nested containers or more than two columns will be reorganized into fewer columns. Simplification of complex forms is recommended, with iFrame rendering as a temporary solution.
    • Shopping Cart: Service Portal provides a base system Shopping Cart widget for use.

    Practical Tips for Customers

    • Review and update client scripts and UI policies to ensure compatibility with Service Portal APIs and asynchronous patterns.
    • Replace Jelly-based components (Content blocks, UI Macros) with widgets using AngularJS for customization.
    • Test all catalog items, record producers, and variable annotations thoroughly in Service Portal to confirm expected behavior and appearance.
    • Adjust complex Service Catalog forms to fit within Service Portal’s two-column layout constraints or consider temporary iFrame solutions.
    • Modify login scenarios by configuring the SPEntryPage script include and related properties instead of legacy CMS methods.
    • Prepare for performance impacts in large order guides and explore splitting or simplifying them.

    Your CMS may include complex forms and customizations that do not render as expected in Service Portal. Use this guide to understand how best to modify your CMS and Service Catalog implementation for Service Portal adoption, and to understand how a conversion may affect your users.

    If you are considering transitioning from CMS to Service Portal, make sure that you understand the impact of moving to a mobile environment. Review the Mobile client GlideForm (g form) scripting and migration.

    Note:
    For information about redirecting CMS users to Service Portal, see the How to automatically redirect users who navigate to any CMS pages to Service Portal [KB0722455] article in the Now Support Knowledge Base.

    Support level and transition actions

    CMS component

    Service Portal support

    Possible transition actions
    Data lookups

    The client-side component of a data lookup is not supported in Service Portal. However, the data lookup is applied in the platform when a record is submitted or updated in Service Portal.

    While data lookups are not applied in the Service Portal, the record updates as expected in the platform UI when submitted or updated in the Service Portal. If your CMS is used by requesters only, this limitation may not affect your implementation.

    Content blocks

    Because Content blocks use Jelly, they are not supported in Service Portal

    .

    In the Service Portal, content blocks are replaced by widgets. Widgets are highly customizable components that can query record data, display and update records, and gather user input.

    Base system widgets generally cover most use cases. Just as you add content blocks to a page in your CMS, you can add widgets to a page using the Service Portal Designer.

    UI Macros

    Because UI Macros use Jelly, they are not supported in Service Portal.

    • In Service Portal, you can use widgets instead of UI Macros. Base system widgets generally cover most use cases, but for custom solutions, you can develop new widgets using AngularJS.
    • If your implementation includes UI Macros in Service Catalog forms that reference other fields or variables in the form, you can embed the widget inside a Service Catalog variable. Learn more: Replace a Service Catalog form script with a widget.
    UI actions

    All server-side UI actions are supported in Service Portal, although setRedirectURL() operations are ignored because Service Portal forms handle redirection in a different way than the platform.

    The form widget ignores all UI actions marked as Client.

    • Refactor any UI actions to remove setRedirectURL() operations.
    • Check that UI actions are not marked as client.
    Catalog client scripts

    Only UI Type options Mobile / Service Portal and All are supported. UI type Desktop is not supported in Service Portal. For a list of supported APIs, see Service Portal and client scripts.

    Note:
    Synchronous JavaScript calls are not supported in Service Portal and must be replaced by asynchronous calls. For example, the getXMLWait() method of the GlideAjax class is not supported in Service Portal. Instead, use one of the following supported asynchronous methods:
    • getXML(Function callback)
    • getXMLAnswer(Function callback)

    For additional information on GlideAjax, refer to GlideAjax.

    To understand the impact of updating your CMS to work in a mobile environment, review Mobile client GlideForm (g form) scripting and migration.

    • Update your scripts to remove any unsupported client APIs.
    • Check that the script UI Type is set to Mobile / Service Portal or All.
    UI policies

    Scripted UI policies can only use APIs supported in Service Portal. For a list of supported APIs, see Service Portal and client scripts.

    Update your scripts to remove any unsupported client APIs.

    Service Catalog variables

    Service Catalog variables are supported in Service Portal with the following exceptions:

    • UI Macros and UI pages variable types are not supported.
    • Validation Scripts for variables are not supported. Supported validation types include:
      • The Mandatory field on the variable form.
      • Read-only variables.
      • All fields in the Availability tab of the variable form.
    • Default variable size is not supported.
    • Expanding and collapsing help text is not supported. Rather, the Help text and Instructions fields defined in the Annotations tab on the variable form are always expanded. The Help tag does not display.
    • The List Collector variable displays as a choice list instead of a slushbucket in the Service Portal.
    • If embedding a widget in a catalog item form, you can use the UI Macro variable type. Learn more: Replace a Service Catalog form script with a widget.
    • If using variable with annotations, make sure to test your catalog items in Service Portal to ensure that help text displays as expected.
    Order guides

    Order Guides in Service Portal use the Order Guide widget.

    Large order guides can cause performance issues in the Service Portal. If you have large order guides, you can:

    • Break them into multiple order guides.
    • Simplify variables used in the order guides.
    • As a temporary solution, you can render the Service Catalog item using an iFrame. See Service Catalog forms in Service Portal.
    Record producers

    Record producers are used in Service Portal with the following differences:

    • The sort order for catalog items in record producers is not honored.
    • Date values do not honor time zone when the record producer submits a record.

    Make sure to test all record producers used in Service Portal to make sure that they behave as expected.

    Login scenarios and redirects

    In CMS, you used the CMSEntryPage script include to define login scenarios. Instead, Service Portal uses the SPEntryPage script include and related system properties to define login scenarios. Redirects are not supported in Service Portal.

    In Service Portal, define login behavior by modifying the SPEntryPage script include and setting system properties.

    For more information, see Single sign-on, logins, and URL redirects.

    Service Catalog forms

    Service Catalog forms such as catalog items and record producers are rendered within widgets in a two-column layout. Complex forms may not display as expected.

    • Only the top-level container settings are honored. If there are other containers within the top-level container, they are rendered as a single column. If there are container splits or nested containers within these additional containers, they are rendered as a single column. A top-level container is not a child of any other container.
    • There can be a maximum of two columns in Service Portal. If your implementation includes forms with more than two columns, the fields are reorganized into two-columns in Service Portal.
    • Variable sets are treated as containers. All previously listed rules apply to variable sets as well as any containers within them.
    • Default variable size is not supported in Service Portal.
    Shopping cart

    The Service Portal includes a base system Shopping Cart widget.

    Use the Shopping Cart widget.