This question already has an answer here:

Basic transaction in geth is

eth.sendTransaction({from:sender, to:receiver, value: amount})

if I want to put some HEX message (eg.FF) to this transaction, where do I put it?

marked as duplicate by euri10, Community Apr 5 '16 at 9:00

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  • This question will probably be closed as a duplicate soon. If the answers from the duplicates don't fully address your question please edit it to include why and flag this for re-opening. Thanks! – Waqar Lim Apr 6 '16 at 8:47
  • I thought, that I have allready marked this as answered? If not, how can I do it? – Matias Apr 9 '16 at 9:28