The conditions of the Partner (Provisional) (subclass 309) visa as specified in the visa letter are:
1. For first entry, arrive by: 1 March 2022. [Hence, it is a "first entry date".]
2. Length of stay: Until notified that subclass 100 has been decided or the application is withdrawn
3. Travel: Multiple entries
Regarding my daughter, you are mistaken. I never mentioned anything about my daughter. It is my partner's daughter who was on the SC309 visa application and was granted exactly the same visa and entry conditions as my partner. However, she wishes to enter Australia in around October 2024, not by the "first entry date" of 1 March 2022.