Samoa have already surpassed their previous placing of 11th at the youth netball championships by advancing to the play-off for 9th or 10th in Glasgow.
Samoa took care of the hosts Scotland 50-35 and will meet Fiji in a bid for 9th, after they beat Namibia 67-49.
Fiji finished ninth at the last tournament four years ago.
The Fiji captain Raijieli Daveua told Planet Netball she's pleased they overcame a slow start against Namibia.
"I feel happy and excited and I thank the girls for what they did today even though we didn't have a good powerful start they did step up and we look forward for tomorrow's game and I thank the almightly God for giving us strength and power."
Elsewhere Papua New Guinea beat Singapore 49-46 to advance to tonight's play-off bid for 13th and 14th against Northern Ireland.