Metasurfaces　(MSs)　have　been　utilized　to　manipulate　different　properties　of　electromagnetic　waves.　By　combining　local　control　over　the　wave　amplitude,　phase,　and　polarization　into　a　single　tunable　structure,　a　multifunctional　and　reconfigurable　metasurface　can　be　realized,　capable　of　full　control　over　incident　radiation.　Here,　we　experimentally　validate　a　multifunctional　metasurface　architecture　for　the　microwave　regime,　where　variable　loads　are　connected　behind　the　back　plane　to　reconfigurably　shape　the　complex　surface　impedance.　As　a　proof-of-concept　step,　we　fabricate　several　metasurface　instances　with　static　loads　in　different　configurations　(surface　mount　capacitors　and　resistors　of　different　values　in　different　connection　topologies)　to　validate　the　approach　and　showcase　the　different　achievable　functionalities.　Specifically,　we　show　perfect　absorption　for　oblique　incidence　(both　polarizations),　broadband　linear-polarization　conversion,　and　beam　splitting,　demonstrating　control　over　the　amplitude,　polarization　state,　and　wave　front,　respectively.　Measurements　are　performed　in　the　4-18-GHz　range　inside　an　anechoic　chamber　and　show　good　agreement　with　theoretically　anticipated　results.　Our　results　clearly　demonstrate　the　practical　potential　of　the　proposed　architecture　for　reconfigurable　electromagnetic　wave　manipulation.　©　2022　American　Physical　Society.