Transporting the Business function to QA environment

Hi Experts,

I would like to activate  business functions in Development system and create a TR for transporting the business functions to QA system.

My question is that whether QA system would trigger a batch job for the TR.

when I activate the business function in development a batch job triggered as in SAP documentation.

Is it required to lock all the users in QA environment when the business function TR is moved into QA system?

Currently we lock all users when we activate the business function directly in QA. I am not able to find any clear information from any SAP notes for my questions.

Thanks in advance!

Siva