Moving document to a folder depending todays date

1. Create your folder structure in advance. It sounds like every year will have 4 periods - 1,2,3 and 4. Each covers 3 months (from what can be assumed given the info you've provided). There's no reason to wait to create the subfolders. You could create folders for the next 100 years and be pretty sure that'll cover the life of your system. You could write a one-off utility process model to do this.
2. You can then set up a Decision Rule to return the appropriate folder for the Year/Month combination. You can ease the burden a bit and only have 4 rows per year by a) using the "First - This decision returns outputs for the first match" option, b) matching exactly on the input year, and  < 4, < 7, <10, <13 in that order, like this:

It'd be slow to set up all of the rows you need but once done it's done.

3. The you simply derive the Year and Month from now() and use those values to return the relevant folder as input to your smart service

1. Create your folder structure in advance. It sounds like every year will have 4 periods - 1,2,3 and 4. Each covers 3 months (from what can be assumed given the info you've provided). There's no reason to wait to create the subfolders. You could create folders for the next 100 years and be pretty sure that'll cover the life of your system. You could write a one-off utility process model to do this.
2. You can then set up a Decision Rule to return the appropriate folder for the Year/Month combination. You can ease the burden a bit and only have 4 rows per year by a) using the "First - This decision returns outputs for the first match" option, b) matching exactly on the input year, and  < 4, < 7, <10, <13 in that order, like this:

It'd be slow to set up all of the rows you need but once done it's done.

3. The you simply derive the Year and Month from now() and use those values to return the relevant folder as input to your smart service

thanks for responding! Can you explain how could I do the  one-off utility process model for the subfolders?

Create a nested loop. In the outer loop seed your Start Year  (e.g. 2023) and have it loop through until your End Year. For example you may start in 2023 and end in 2123 (100 years!). 

Within each iteration of the Year you'd:

1. create the Year folder
2. create a loop to create Period 1,2,3 and 4 Folders, all within the current Year folder

So your outer loop may look like this:

and your inner loop (contained in the sub-process) like this:

This would run sequentially, and there are other ways to achieve the same outcome faster (you could spawn all 4 Create Period processes concurrently but probably not worth the effort)