Thanks for sharing the process.

Hi 

You can migrate the Odoo 16 Enterprise Database to Odoo 18 using Upgrade scripts.

You can initiate using the following command line

 python <(curl -s https://upgrade.odoo.com/upgrade) test -d <your db name> -t <target version>

Check this Upgrade odoo , where you submit an Odoo request and upload the dump backup of your odoo 16 database,it will give you upgraded odoo 18 

Regards

Hi,
Yes you can migrate to 18.0.

Steps to do:
* Migrate the custom codes to 18.0
* set up v18 instance
* initiate the migration by uploading a test backup to: https://upgrade.odoo.com/
* Once test migration is okay, apply the same for live

Thanks