If a person had multiple positions at a single company, says position A and position B. Does these two need to be mentioned on the letter if ONLY position A is used to claim points?
should indicate all positions held while employed at the company and must include the following details: job title, duties and responsibilities, job status (if current job), dates worked for the company, number of work hours per week and annual salary plus benefits; and
However, I am not sure if the unclaimed positions need to be indicated as well.
You should follow the requirements. If you company refuses to write the other positions for whatever reason, just explain in your LOE and you'll be fine. Titles are not what matters in the evaluation, unless you said you're a manager without carrying out managerial tasks or something.
Ok, but is it necessary to include the duties for the positions that are not used to claim points? That seems to make the letter look quite confusing with lots of information that won't get me points
Ok, but is it necessary to include the duties for the positions that are not used to claim points? That seems to make the letter look quite confusing with lots of information that won't get me points
If your duties were substantially different during your period of employment, then they won't fit one NOC and you may need separate fields in your work experience.
If however you were doing the same type of work for the most part, but say got promoted, it should be fine listing the tasks and duties of your latest title.