A column in one sheet contains names using Contact List Column Type. Each cell may have a single contact or multiple contacts. Each row has various meeting information and this column lists who has attended the meeting. The other columns contain additional meeting information.
Trying to calculate how many meetings an individual contacts has attended. I.e How many times his/her name appears in the the column (i.e. attended meetings across multiple rows). I have created the following CONTAINS formula but it doesn't work, error message #INVALIDOPERATION
COUNTIF({Range}, CONTAINS([Column7]@row))
Range is the column in the source sheet that contains the name and [Column7] @ rows lists the name of the person I am trying to calculate the number of visits for. Column 7 is the same format as the source sheet (Contact List Type).
Any help much appreciated.