Flexible Gmail Filters Using Google Script App

Do you want more customisation on Email filter? For example, search for Company Registry number in the email and forward to the responsible person based on your database.

There is no way to complete the task in standard Gmail filter since Gmail filter does not offer search based on pattern and cannot use information stored outside, such as a database.

Google App Script is a handy too to accomplish more complicated task related to GSuite apps, like Gmail, Google Drive, and Google Sheets.

I can use GmailApp.search("is:Inbox from:XXXXX@gmail.com Subject: YYYYY"); to search for target email from a certain email and with certain subject. I can also use GmailApp.getMessagesForThread to get the email body.

With the power of Javascript, you can do a lot of customization based on your specific needs.

Check it out at Google App Script. Best of all, it is basically free if not exceed the limit.