Hello, 

This usually happens due to Odoo's multi-company behavior rather than data being merged.

Please check the following:

• Verify which companies are currently selected in the company switcher (top-right corner)

• Review the affected user's access rights and allowed companies

• Check whether dashboard filters were changed recently

• Also verify if any recent module update or configuration change occurred

If multiple companies are selected simultaneously, Odoo can display dashboards and data across all selected companies.

Hope this works for you! If you need any help implementing this or want a more optimized approach, feel free to reach out for further discussion.

Regards,

Zehntech Technologies Inc.

santosh.sekwadia@zehntech.com