Experience outside Canada / ECA & TEF

[Walid2604]

Hi guys

rather than the position in my previous job outside Canada, do we still need to mention duties & responsibilities on the reference letter or that would apply only for my current job ?

I got ITA but they did not ask me to upload my TEF test result and ECA, does IRCC already has access to those files when we gave the reference numbers for ECA & language test ?

THANKS