Hi @Becca51178 :
I guess this condition "ID=ID" may cause ambiguity.Please Try:
ClearCollect(ReviewList,
AddColumns(
RenameColumns(Filter(FSDetailSupport_,Review_Status.Value="Sent to Reviewer3" || Review_Status.Value="Sent to Reviewer2" || Review_Status.Value="Sent to Reviewer1"),"ID","IDD"),
"CurrentReviewer",
If(Review_Status.Value="Sent to Reviewer1",
LookUp(FSDetailSupport_,ID=IDD,Reviewer_1.DisplayName),
If(Review_Status.Value="Sent to Reviewer2",
LookUp(FSDetailSupport_,ID=IDD,Reviewer_2.DisplayName),
If(Review_Status.Value="Sent to Reviewer3",
LookUp(FSDetailSupport_,ID=IDD,Reviewer_3.DisplayName))))));
or
ClearCollect(ReviewList,
AddColumns(
RenameColumns(Filter(FSDetailSupport_,Review_Status.Value="Sent to Reviewer3" || Review_Status.Value="Sent to Reviewer2" || Review_Status.Value="Sent to Reviewer1"),"ID","IDD"),
"CurrentReviewer",
If(Review_Status.Value="Sent to Reviewer1",
Reviewer_1.DisplayName,
If(Review_Status.Value="Sent to Reviewer2",
Reviewer_2.DisplayName,
If(Review_Status.Value="Sent to Reviewer3",
Reviewer_3.DisplayName)))));
or
ClearCollect(ReviewList,
AddColumns(
RenameColumns(Filter(FSDetailSupport_,Review_Status.Value="Sent to Reviewer3" || Review_Status.Value="Sent to Reviewer2" || Review_Status.Value="Sent to Reviewer1"),"ID","IDD"),
"CurrentReviewer",
Switch(Review_Status.Value,
"Sent to Reviewer1",
Reviewer_1.DisplayName,
"Sent to Reviewer2",
Reviewer_2.DisplayName,
"Sent to Reviewer3",
Reviewer_3.DisplayName)));
If you still have any question,please don't hesitate to let me know.
Best Regards,
Bof