When heading to Nishi-Umeda Station on the Subway Yotsubashi Line（四つ橋線西梅田駅）from Umeda Station on the Subway Midosuji Line（御堂筋線梅田駅）, it is convenient to use Minami Gate of Umeda Station (If you start from the platform, head for Exit 11-18).
It takes about 6 minutes from Minami Gate of Umeda Station to Nishi-Umeda Station.
More details will be explained later.
Osaka Station Map
Transfer at Umeda Station on the Subway Midosuji Line to Nishi-Umeda Station on the Subway Yotsubashi Line
The details are as follows:
After getting out of Minami Gate of Umeda Station on the Subway Midosuji Line, turn right.
At the end of the passageway, go diagonally forward left.
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 the passageway next to Kita Gate (left in the photo above).
You will see Naka Gate of Nishi-Umeda Station on the Subway Yotsubashi Line for boarding only.