In the case of the connection ticket to Osaka Municipal Subway (the ticket must be the one through Tenjinbashisuji-rokuchome Station), it isn't permitted to make a transfer to the subway line at Minamikata Station (Osaka Prefecture) (including Nishinakajima-Minamigata Station).
大阪市営地下鉄との連絡切符（天神橋筋六丁目駅経由指定のもの）を使う場合、梅田駅（含・東梅田駅、西梅田駅）、南方駅(大阪府)（含・西中島南方駅）の地下鉄線との乗り継ぎは出来ない。