Please confirm that you have thoroughly test your upgrade.

To make sure your upgrade process goes as smoothly as possible, it is extremely important to make sure that you have completely tested your upgrade.
Please confirm that you have:

• Checked that all your usual flows work properly (CRM flow, Sales flow, etc.)
• Inspected your data (e.g. accounting reports, stock valuation, etc.),
• Checked your website and mail templates
• …