Hi @hikmetjci
Has your problem been solved?
If you want to determine whether the new file name contains a specific string when a file is created in a folder.
You can take a try to add Get file metadata action, and then determine whether the file name contains a specific string.
Please refer to below screenshots:
To avoid the case problem, you can use the toLower() function to convert the file name to lowercase, and then judge.
toLower(outputs('Get_file_metadata')?['body/Name'])
Hope the content above may help you.
Best Regards.
