Battery charging from Orion DC-DC and smart solar at the same time

A very simple question I have smart solar charger to charge the leisure battery of my campervan. I want to add an Orion DC-DC to also charge from the alternator. If I connecto both outputs directly to the battery when driving potentially I could have DC-DC converter and smart solar charging trying to charge rthe battert at the same time. Do I need to disable the smart solar output to prevent any issue when driving .
I’m a qulaified electrical engineer… so I do know hwat I’ doing. thanks

They will work together OK. Once the battery reaches absorption you will find one cuts back charging first and goes to float first. Some people deliberately set the DC to DC charger voltages 0.05-0.10V lower to give priority to solar.