Hello,
I recently flew Lufthansa and decided to give mobile boarding pass a try.

Everything looked good, but I was curious about the last letter on the bottom, next to the date or travel. Could this be the fare class?

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(In this case, would this fare class be "M"?)

I searched all the Lufthansa website but could not find any info about this.

Please let me know if you know the answer.

Thanks in advance!