What the title says. The "very long beard" character creator item cannot be obtained, as there's no achievement for it. This issue has been going on since September. There was a bug report for this issue, but it was ignored and marked as resolved/incomplete. (MCPE-140707)
Linked issues
is duplicated by 3
MCPE-151589
Very long beard reward is locked after I complete 100 achivements
Resolved
MCPE-162735
One of the facial hair on character creator has no achievement tied in with it
Resolved
MCPE-172179
The very long beard in the character creator still needs an achievement to unlock it; which it is missing and has been for 2 years.
Resolved
Update: this is still an issue on the latest version (1.18)