Communication is crucial to successful co-parenting. You can definitely minimize communication, but you should never completely eliminate it. If your child is older or if your schedule is weekly on/off co-parenting, then once per week may be enough.

Is it normal for co parents to talk everyday?

“Its too much when its constant. Barring emergencies, most co-parents seldom need to communicate more than once a day. Many manage with a single communication each week or each parenting period, whichever is briefer.” So unless theres a constant crisis at your home, those multiple texts a day are unnecessary.