IMMI ASSESSMENT COMMENCE, Processing Allocation

Hi, After 32 months after the lodgment of Visa S.C. 190, At the beginning of Aug, I received a message in my immiaccount profile saying “IMMI Assessment Commence”. Are there any applicants here who know more information about this type of message?

The message summary is as follows:

This letter confirms that your application is progressing and has been allocated for further processing. You will be contacted about any additional information if required.

How long does it take for the case officer to finalize the case?