How to input data based on a UNIQE rows on the datatable

I NEED HELP TO APPEND the data value “VARIABLE = SUCCESS” to a spesific row
From this
to this

thanks and regards

not really , iwant to append data based on uniq row
example: i want to append the data on uniq clumn = 2/ or 3

this process will be done inside for each activity

Hi @Ahmad_Rais

Difficult to understood Your Query!

Looping @ppr @Yoichi to have a view on this!