We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
eBooks in German: Distribution to Amazon etc. possible?
The current "Lulu eBook Creator Guide", version 1.4e of 2014, states this on page 8:
"Language: Though we hope to be able to accept additional languages in the future, we now only accept content for retail distribution in English."
Is this still true in 2017? Specifically, I am planning to publish a book German in March 2018 (paperback and eBook). Any chances I might be able to publish it as eBook via Lulu?
(I am asking here because I could not find any relatively recent answers to this question.)