SmartPLS 4 is a software tool for performing partial least squares structural equation modeling (PLS-SEM), known for its user-friendly, graphical interface. It features new capabilities like a completely redesigned interface, faster algorithms, and added statistical routines for both PLS-SEM and covariance-based structural equation modeling (CB-SEM). Key new features include improved model comparison, endogeneity assessment, cross-validated predictive ability, and support for new algorithms and model types.