If you haven't actually entered Canada yet, then you haven't been issued work or study permits. The permits are issued by CBSA when entering the country. What country are you from? Are you referring to the TRV in your passport or an eTA??
Of course I wasn't issued a work or study permits. Nonetheless, at the time you are approved, the correspondences letter specifies the stipulated information you provided through the application process. A CBSA officer will perform an examination of documents and then decide. As @21Goose stated, you could, in theory be denied the actual permit. I am referring to the validity of the period granted by the correspondence letter issued by CIC, not the TRV in the passport. I am a EU citizen and my wife is from Brazil.