This protocol describes the method for antibody staining of FFPE bone marrow tissue on slides using CODEX barcoded antibodies. The Akoya Phenocycler-Fusion user manual was modified to include photobleaching steps. Included are the stepwise protocols for tissue procurement, tissue decalcification, tissue sectioning, pre-staining, deparaffinization, antigen retrieval, photobleaching, antibody staining, post-fixation, and tissue storage.