in tandem with
US /ɪn ˈtæn.dəm wɪθ/
UK /ɪn ˈtæn.dəm wɪθ/

1.
alongside each other; together
:
•
The two departments worked in tandem with each other to complete the project.
•
The new software operates in tandem with the existing hardware.
alongside each other; together