Racking my brain to get the following to work: =IFERROR(IF(D5=0,"",D5+45),IF(D5="","",D5+7-MOD(D5-1,7)))
D5 being the source date that I'm adding 45 days to and then rounding to the following Sunday. Honestly wouldn't mind figuring out the previous Sunday as well. We are trying to set...