Hi all, below is the table that I want to use for a sumif formula

Date Activity Point Agent Client
250213 OSA 1 John Tom
250213 OSA 1 John Tom
250213 OSA 1 John Mike

As long as the activity is done for the same client on the same day by the same agent, no matter how many duplicate entries, I would like to sum the points for only 1 activity. For example, in this case, John's total points will be 2 (1 for client Tom and 1 for client Mike).
Also, I want to leave the duplicate entries there and not remove them, as in my spreadsheet that are actually subactivities for each activity.

Could you please help me out with this? I'm stuck with my sumif formula.

Thanks and your help is much appreciated!