How to update a table with a recursive CTE? - sql-server

Question

I hope you can help me
I have a problem over here, been trying to solve this but cannot figure out how. I have a simple table which represents reps and their leaders over cycles (time measures) like this:
RepID|LeaderID|CycleID
I need to calculate for each leader the whole tree below them only with certain status twice, because the formula is:
(All reps below the leader with status 1 or 2) - (All reps below the leader on the previous cycle with status 7)
My code is as follows:
update ccp
set ccp.Total_reps =
(
select isnull(COUNT(*),0)
from dbo.MCP_Reps_by_cycle ccp_total_reps
join dbo.MCP_Compensation_Plan cp_total_reps on cp_total_reps.ID_Compensation_Plan = ccp_total_reps.ID_Compensation_Plan and cp_total_reps.CycleID = #previous_cycle and cp_total_reps.Definitive = 1 and cp_total_reps.Active = 1
join dbo.F_Get_reps(ccp.RepID, #previous_cycle) r on r.RepID = ccp_total_reps.RepID
where ccp_total_reps.StatusDetailID in(1,2) and ccp_total_reps.Active = 1
)
-
(
select isnull(COUNT(*),0)
from dbo.MCP_Reps_by_cycle ccp_total_reps
join dbo.MCP_Compensation_Plan cp_total_reps on cp_total_reps.ID_Compensation_Plan = ccp_total_reps.ID_Compensation_Plan and cp_total_reps.CycleID = #previous_cycle_two and cp_total_reps.Definitive = 1 and cp_total_reps.Active = 1
join dbo.F_Get_reps(ccp.RepID, #previous_cycle_two) r on r.RepID = ccp_total_reps.RepID
where ccp_total_reps.StatusDetailID = 7 and ccp_total_reps.Active = 1
)
from dbo.MCP_Reps_by_cycle ccp
join dbo.MCP_Compensation_Plan cp on cp.ID_Compensation_Plan = ccp.ID_Compensation_Plan and cp.ID_Compensation_Plan = #ID_Compensation_Plan and cp.Active = 1
where ccp.Active = 1
What the F_Get_reps function does, is a simple recursive CTE:
RETURNS #MIT table (RepID int)
as
begin
with rep_network as (
select ccp.RepID
from dbo.MCP_Reps_by_cycle ccp
join dbo.MCP_Compensation_Plan cp on cp.ID_Compensation_Plan = ccp.ID_Compensation_Plan and cp.CycleID = #cycleid and cp.Definitive = 1 and cp.Active = 1
where ccp.Active = 1 and ccp.LeaderID = #repid
union all
select ccp_2.RepID
from dbo.MCP_Reps_by_cycle ccp_2
join dbo.MCP_Compensation_Plan cp_2 on cp_2.ID_Compensation_Plan = ccp_2.ID_Compensation_Plan and cp_2.CycleID = #cycleid and cp_2.Definitive = 1 and cp_2.Active = 1
join rep_network r on r.RepID = ccp_2.LeaderID
where ccp_2.Active = 1
)
insert into #MIT
select RepID
from rep_network
return
end
I know the call to the function is the problem, but I cannot figure out how to remove it.
Please help me
Thanks in advance