Failed to execute Join Domain step

Symptoms

'Join Domain' step fails during Task Sequence.
In the case of OSD Task Sequence pmm_launchd_helper.log has this error:

join_domain: Binding to domain DOMAIN_NAME...MSG:Binding...
dsconfigad: Computer name must be less than 15 characters

In the case of non-OSD Task Sequence pma_agent.log has these records:

12-09 09:57:16.917 D /PrlCommonUtils:1471:307/ Process '/Library/Parallels/pma_agent.app/Contents/Resources/../Resources/scripts/join_domain.sh' finished with (0:65)
12-09 09:57:16.917 D /TsProcessors:1471:307/ Script 'join_domain.sh' exit code: 65, status: 0
12-09 09:57:16.917 D /TsProcessors:1471:307/ Script 'join_domain.sh' output:
join_domain: Parallels Mac Management - Join Domain (Mon Dec 9 09:57:16 CST 2019)
join_domain: Binding to domain DOMAIN_NAME...
MSG:Binding...
dsconfigad: Computer name must be less than 15 characters
12-09 09:57:16.918 D /TaskSequence:1471:307/ Progress: Total=50% Step=100% Binding...
12-09 09:57:16.918 D [Group] /TaskSequence:1471:307/ Step 'Join Domain' failed: Script join_domain.sh failed (exit code: 65, status: 0)
12-09 09:57:16.918 D /TaskSequence:1471:307/ Progress: Total=50% Step=100% Binding...
12-09 09:57:16.918 I /TaskSequence:1471:307/ Task Sequence 'Mac Setup' failed
12-09 09:57:16.918 D /TsMgmtAgent:1471:307/ Task Sequence P0120491-P0100739-6F6BCC28 failed: Script join_domain.sh failed (exit code: 65, status: 0)

Cause

Mac's name has 15 characters or more.

Resolution

Set Computer name less than 15 characters.