A detent device for a transmission, having a shifting element, first and second end-position retaining configurations arranged at first and second positions, respectively on the shifting element, the second position is different from the first, and a neutral retaining configuration arranged on the shifting element at a third position different from the first and second positions. A latching first detent element which, depending on the position of the shifting element, latches either at the first or second end positions in the first or second end-position retaining configurations, respectively, and another latching detent element, which latches in the neutral retaining configuration when the shifting element is in its neutral position. The neutral retaining configuration has a retaining contour which is designed and/or orientated differently on the shifting element from the first end-position retaining configuration and from the second end-position retaining configuration. A transmission with a detent device.