You can configure plugin very easy.
After installing you can Enable Log 404 Errors and you will see bad Urls on your store.
Plugin has special list for adding mapping beatween Request Url and Target Url and status code.
If you need to import many routes you can use the next CSV format of files.
This file has 3-5 columns.
Example (3-columns templates)
Example (4-columns templates)
First redirect is for all stores
Second redirect is for store with Id=1
Example (5-columns templates)
iphoneX302,iphoneX,301,0,we use this redirect for old product
oldmainpage,\,301,1,seo specialist asked use to add it
First redirect is for all stores and has comment 'we use this redirect for old product'
Second redirect is for store with Id=1 and has comment 'seo specialist asked use to add it'
Each product, category and manufacturer page in admin mode has new tab with redirected routes. It can help you manage them fast.
How to redirect PHP files for nop 3.90?