Description

Search engines might fail to index pages with the following error. The issue happens with the pages that have Commerce campaigns and goals assigned or triggered via code.

Exception: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: Sitecore.Commerce
  Sitecore.Commerce.Pipelines.Common.TriggerPageEvent.Process(ServicePipelineArgs args) +1443
  (Object , Object[] ) +82
  Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args) +364
  Sitecore.Commerce.Pipelines.PipelineService.RunPipeline(String pipelineName, TArgs args) +69
  Sitecore.Commerce.Services.ServiceProvider.RunPipeline(String pipelineName, TRequest request) +281
  Sitecore.Reference.Storefront.Managers.CatalogManager.VisitedCategoryPage(CommerceStorefront storefront) +261
   Sitecore.Reference.Storefront.Controllers.CatalogController.VisitedCategoryPage() +36
   ...

Solution

To resolve the issue, consider one of the following options:

• Upgrade Sitecore XP instance to Sitecore XP 9.3 and Sitecore Experience Commerce 9.3 or later.
• For Sitecore XP 8.2.1 and Sitecore Commerce powered by Commerce Server 8.2, download and install the hotfix: SC Hotifx 215854-1 Commerce.Connect 8.2.357.zip.

  Be aware that the hotfix was built for a specific Sitecore Commerce version, and must not be installed on other Sitecore Commerce versions or in combination with other hotfixes. In case any other hotfixes have already been installed on a certain Sitecore Commerce instance, send a request for a compatibility check to Sitecore Support.

  Note that the ZIP file contents must be extracted to locate installation instructions and related files inside. The hotfixes must be installed on a CM instance and then synced with other instances using standard development practices.