In the Planning tab of Analytics / Workforce Analytics, links such as Workforce Planning Home and Workforce Planning Foundations give error messages on an inconsistent basis.
SuccessFactors Workforce Planning & Analytics
These pages may not work before the main forecast list in Workforce Planning has been opened. This is a long-running issue.
Click Strategic Forecasts, Operational Forecasts or All Forecasts in the Planning tab before opening other links.
KBA , LOD-SF-WFA , Workforce Analytics & Planning , Problem