Hi @UpgradeIT
First off, thinking about the trigger, you mention it is a monthly file? Does this file always get uploaded to the same folder? Does it have its own dedicated folder? In which case you could use when a "file is created in a folder". We do not need to worry about the file name using this method.
Alternatively, you could use a scheduled "reoccurence" trigger, once a month on the 1st or 28th day of the week. But the problem we have here is that we need to find your file. Here we could use "Get Files (properties only)" action. You could setup an OData filter on the creation date gt a date for each month to reduce the number of files returned and then use filter array on the filename containing a string. So whilst it might not always be named the same, if it contains a similar phrase "LogFile_20210201", we could use a filter on FilenameWithExtension (from get file properties).
Please let me know how you get on.
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Cheers,
Damien
