"Portfolio" field is not populated in some resource plansDescriptionA relatively large proportion of resource plans do not have the field: "Portfolio" populated. All tasks related to such resource plans are Projects. In some, such tasks creating a resource plans correctly populates "Portfolio". In others, the field is not populated. This happens in all instances.Causetop_portfolio is empty for some Projects and filled for otherResolutionDo a show_xml on a Project record and search for top_portfolio - All the Projects that have a top_portfolio Empty have issues with Resource Plans.Business Rule that Updates the RP with Portfolio https://<instance>.service-now.com/nav_to.do?uri=sys_script.do?sys_id=b9c18cae9310120064f572edb67ffbdftop_portfolio value missing in some projects when imported.Run a Background script to populate top_portfolio on the Project to be equal to portfolio or modify the Business on Resource Plan to use Portfolio as per you design needed.That will fix the issue as when creating a Resource Plan the top_portfolio field is used.