Co-parenting with someone you've separated from is one of the most challenging interpersonal skills there is. But it's learnable.
The Business Partner Framework
Treat your co-parenting communication like a professional business relationship. Keep it focused on the children. Keep it brief and factual.
Communication Tools
Use dedicated co-parenting apps like OurFamilyWizard or TalkingParents. These create a documented record and reduce impulsive, emotional messages.
Establish communication windows. You don't need to be available 24/7.