zoya_99 said:
In this case file number or client id is generated or not? Is application considered received or no?
Client ID (two groups of four digits) is a unique no generated on first contact with CIC, i.e. applying for PR and always will be your ref# in relation with CIC
Case number (UCI - a seven digit #) is only for Citizenship file/application.
If application is returned it is not considered started (UCI not generated)