Qualifications improve your chances; they do not gate the job. Level 3 is the most recognised.
Level 3 most recognisedOpen entry
Your route in
You can start without qualifications - direct entry/volunteering; a qualification improves your chances
1
Qualifications employers recognise (Level 3)
Any of these strengthens your application.
2
Where this can take you
People genuinely enter as warehouse operatives with no quals (Supply Chain Warehouse Operative L2), then step up to shift supervisor via the Transport and Warehouse Operations Supervisor L3 apprenticeship.