Cyclic Reference

[ACraig08]

I have two tables, P6 and CHIMES. Both have fields called SP Number. I wanted to create a column in both tables indicating if the SP Number in the table is in the other table. I created reference tables for both tables that only contain the SP Number fields and converted them to lists called CHIMES SPs and P6 SPs. 

I first created the column in the P6 table called In CHIMES:

if Logical.ToText(List.ContainsAny(#"CHIMES SPs", {[SP Number]})) = "true" then "In CHIMES"
else "Not In CHIMES"

It worked fine. Then when I went to create the same column in the CHIMES table:

if Logical.ToText(List.ContainsAny(#"P6 SPs", {[SP Number]})) = "true" then "In P6"
else "Not In P6"

Then all of a sudden I get the cyclical reference error. I guess I don't understand how this is considered a cyclical reference. If anyone has any alternative solutions that would be so wonderful.

[lbendlin]

This can be done much simpler with List.Intersect.

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