Hi Mari, after getting your reply I checked. I used two filter array. In second array I did not use 'Filter_array_2' in expression. Later it worked.
But new problem came.
When I submitted MS form (Laboratory)responses. There I have two separate IDs. e.g. cyanide and chloroform.
.I filled up Cyanide MS forms and submitted. After filter array new data went to appropriate row. But when I went for submission for the other one (chloform)..it was not updating. Seems like my first submission was considered for both.
Any solution??