Some clarifications here
Anyone who is from N level to Poly Diploma holder, can be a clerk
or a storeman if they are PES E.If you are an A level/Diploma
holder, highest rank you will get is CPL, if you do not have any of
those qualifications,then its LCP.
If you are a scholar but in PES E, the highest rank you will get is
3SG, with the vocation of Basic Admin Supervisor.
And to add on, if you are part of the enhanced batch, you may
become Logistics and Military Engineering Specialists too.