Hi @andler67
in addition to what @trice602 has explained here, you have to add few more conditions n condition action apart from checking whether file name has Pippo_ as value like below
1. First condition check whether attachment name is having Pippo_
2. Second condition checks whether the date part after Pippo is having 10 characters using length expression
Expression- length(split(items('Apply_to_each')?['name'],'_')?[1])
3. Third condition checks whether the date component has 3 parts - day, month and year using splitting by / like below
Expression: - length(split(split(items('Apply_to_each')?['name'],'_')?[1],'/'))
4. fourth condition checks whether the date part after removing / is a perfect numbe or not
Expression: isInt(replace(split(items('Apply_to_each')?['name'],'_')?[1],'/',''))
I think adding this conditions can help to filter the attachments as well.
