When heading to Nishi-Umeda Station on the Subway Yotubashi Line（四つ橋線西梅田駅） from JR Osaka Station（JR大阪駅）, it is convenient to use Sakurabashi Gate（桜橋口改札）of JR Osaka Station.
It takes about 4 minutes from Sakurabashi Gate of JR Osaka Station to Nishi-Umeda Station.
More details will be explained later.
Osaka Station Map
Transfer at JR Osaka Station to Nishi-Umeda Station on the Subway Yotsubashi Line
The details are as follows:
After getting out of Sakurabashi Gate of JR Osaka Station, head to the escalator diagonally forward left and go down to the underground.
After getting off the escalator, turn left.
After the Yotsubashi Line sign, go diagonally forward right.
The ticket gate, shown in the photo above, is Kita Gate of Nishi-Umeda Station on the Subway Yotsubashi Line.
Kita Gate of Nishi-Umeda Station is for disembarking only, so if you are boarding, go on that passageway next to the Kita Gate (left in the photo above).
You will see Naka Gate of Nishi-Umeda Station for boarding only.