So whenever either of you post the when's and where's of Hitler's excommunication (presumably before his death) - please ping me.
Hitler was excommunicated ipso facto. An example today is someone who procures or participates in an abortion falls in that category. The Church rarely formally excommunicates as excommunication is a rehabilitation tool. I am fairly confident the Church did not look up Hitler as someone who could be rehabilitated...(puts him in the same category as Nancy Pelosi actually).
Other than being baptized in the Catholic Church, he never progressed through any other sacraments (first communion, confirmation etc.) as his family never attended Mass before or after the baptism. Technically he was baptized Catholic but was he Catholic...not so much.
Look a few posts above. I found the necessary documentation on the net, still in German, sometime ago. How good is your German? Use that at google and you’ll find it.