The ex-couple took Stormi to an L.A.-area pumpkin patch Tuesday ... and both of them shared photos of her having a blast in a cute little Halloween-themed outfit.
Kylie and Travis didn't snap any pics together, though ... and our sources say that's because they're not back on as a couple. However, we're told they have been spending time together and believe it's important to do stuff with their daughter as a team.
The pumpkin patch is the same spot they hit up last year as a family ... so they wanted to do it again for Stormi's sake.
We broke the story ... Kylie and Travis decided to take a break last month not long after they attended the premiere of Scott's documentary, "Look Mom, I Can Fly," in late August.
Our sources told us the split was amicable -- no nasty fights or cheating involved -- and it looks like things are still copacetic a few weeks later.