Confirmation is a part of Lutheran practice although it is not considered to be a sacrament. Traditionally, it is grounded in study of Luther’s Small Catechism. This contains instruction on the Ten Commandments, the Apostles’ Creed, the Lord’s Prayer, the Sacrament of Holy Baptism, and the Sacrament of the Altar.
Some Lutherans now refer to Confirmation as “Affirmation of Baptism” because in the rite the confirmand affirms the promises made in his/her behalf by parents and sponsors at baptism.
It might also be noted that even in the Church of Sweden, where tactile apostolic succession was retained at the Reformation, presbyteral confirmation is the norm.
Lutherans classically recognize three sacraments (Baptism, Eucharist, and Reconciliation), and often today only the first two.
I would note that most Protestant churches that follow paedobaptism have a form of confirmation where the individual confirms personally the promises made on his behalf at baptism. I know Presbyterians do this.
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