= LET(
event, IF((status<>"")* (status<>"wip"),"action", status),
finalAction, XLOOKUP("action", event, status, , ,-1 ),
finalWIP, XLOOKUP("wip", event, status, , ,-1 ),
locatedWIP, COLUMN(finalWIP) > COLUMN(finalAction),
days, COUNTIFS( finalAction:finalWIP, "wip" ),
IF(locatedWIP, days, 0) )
Defined Name 'isAction':
= COUNTIFS(eventList, status)
Worksheet Formula:
= COUNTIFS(
status, "wip",
period, ">" & IFNA( LOOKUP(2,1/isAction,period), startDate-1) )