Upon an appeal from a judgment or order an appellate court may reverse, affirm or modify the judgment or order as to any or all of the parties; may order a new trial; and, if the appeal is from a part of a judgment or order, may reverse, affirm or modify as to the part appealed from. In all cases an appellate court shall remit its judgment or decision to the court below and thereupon the court below shall proceed in accordance with the judgment or decision.
Wis. Stat. § 808.09
The court of appeals may not direct a circuit court to enter a judgment of conviction of a lesser included offense when the jury verdict of guilty on the greater offense is reversed for insufficiency of evidence and the jury was not instructed on the lesser included offense. State v. Myers, 158 Wis. 2d 356, 461 N.W.2d 777 (1990). The court of appeals has authority to grant a summary judgment motion that was denied by the trial court. Interest of Courtney E., 184 Wis. 2d 592, 516 N.W.2d 422 (1994). In the absence of a remand order in the mandate line or some other clear directive from the appellate court ultimately deciding the appeal, a trial court whose judgment or final order has been affirmed by the appellate court on the merits has no authority to reopen the case for an amended complaint. Tietsworth v. Harley-Davidson, Inc., 2007 WI 97, 303 Wis. 2d 94, 735 N.W.2d 418, 04-2655. Unless the supreme court explicitly states otherwise, a court of appeals opinion overruled by the supreme court no longer retains any precedential value. Blum v. 1st Auto & Casualty Insurance Co., 2010 WI 78, 326 Wis. 2d 729, 786 N.W.2d 78, 08-1324.