I have a stored procedure that produces data for total sales for the month. I want to used the stored procedure to create a ssrs report, that separates each page by sales agents
You need to create a grouping on your tablix by sales agent.
Once you have the grouping follow these steps:
This will split the workbook into tabs by sales agent. You can then name the tab after the sales agent as well by editing the Page Name in the Group properties pane. You will need to use a variable for this.