Default Personal dictionary shortcut aka text expander

Hey guys,

im a big fan of the xperia keyboard i believe everything suits my preference except for the text expansion/shortcut in the personal dictionary, i dunno how to activate it or make it work, i already keyed in so many shortcuts like, omw - on my way, but still if i type the shortcut, the word doesnt expand. i was using google keyboard but for lack of better dictionary and other function, i still love the xperia keyboard except this hurdle.

thanks in advance!