Here's an example, the two polygons below have no gaps or overlaps, but the nodes on the shared edges are not exact the same, how can I make them have same nodes? And I've got like more than 50 thousands polygons in a feature class like that, is there any tools to get it done?
Abdullah... I was just pointing out the source of the error... in case they have to create their own data at some stage.
Yes, I got it. But I'm not the one who produced the data and I need to fix the error.
Just an additional suggestion... did you look at the Integrate—Help | ArcGIS Desktop tool?
Just did a simple test on a very messy sample dataset:
In my case I used a large tolerance (25m):
...and that does not only change the matching borders, but also the rest of the polygon.