You can find more info here:
If a province or territory has already agreed to nominate you
If you already applied to a province or territory, and they have agreed to nominate you under an Express Entry stream, you do not need to register for Job Bank. Instead, you must show in your Express Entry profile that you have a nomination:
When you create your profile, in the Application Details section under “Nomination and selection,” answer “yes” to confirm that you have a nomination under a PNP Express Entry stream
Choose the province or territory from the drop-down menu. It will show up after you change the previous answer to “yes.”
Then, follow the instructions below to have your nomination confirmed.