Hi!
Please check: What is meant with highway=mwembeni ?

Wie gesagt, ich kenne mich mit indoor mapping nicht aus. Schwierig ist es, weil man oft mehrere Linien übereinander legen muss und dann ist die Auswahl der gewünschten Linie nicht mehr so simpel.
Ansonsen kann ich nur auf osm.wiki/Simple_Indoor_Tagging
hinweisen und natürlich solltest Du alle Meldungen des JOSM Validators prüfen.

Hi!
Please review: What is meant with highway=kn on way/543293274 ?
Why are the footways in this area not connected to e.g. way/146623134 ? Instead they are connected with (end at) the landuse area.

Hi and welcome to OSM!
I've noticed this changeset because of the unusual tag highway="Ngô Sĩ Liên, KDC Metro"
I assume that "Ngô Sĩ Liên, KDC Metro" is the name of a residential road, so you should use
highway=residential + name=Ngô Sĩ Liên, KDC Metro
See also highway=*
Hope this helps, happy mapping!

Hi!
What did you try to map with this way?
way/543090675
Normally the tag highway=traffic_signal is used for a node on a highway=*.

Moin und willkommen bei OSM!
Du hast Dich als OSM Neuling mit indoor Mapping ja gleich an ein ziemlich schwieriges Thema rangewagt ;-)
Ich kenne mich mit dem Thema nicht aus, aber highway=staiway ist seltsam.
way/543042483
Meintest Du room=stairs?
way/543061358
hat room=stairways ,wahrscheinlich auch besser room=stairs.
Auch indoor="area=room" sieht falsch aus:
way/541039967
In welcher App schaust Du Dir die Daten an?

Hi and welcome to OSM!
You used the tag highway=crossing for a way here. The tag is only meant for nodes shared by a major road and a minor way (footway / cycleway).
So, if there is a crossing (no bridge or tunnel), please make sure that the minor way and the major are connected and tag the shared node with highway=crossing and additional tags that describe the crossing. If the minor way is a footway, use highway=footway + footway=crossing, else highway=cycleway + cycleway=crossing. Hope this helps?

Hi!
Why did you add the tag highway=* to this church?

OK, did you also understand that highway=private is very unusual?

Please add surface=* as well, as the meaning of surface:grade=0 is only clear when the surface is known.

Hi!
Please review: You changed a highway=living_street to highway=living street here. way/323692418
I suggest to use something like was:highway=living_street instead, as your tag looks like a simple typo.

Hmm, not sure what you changed but way/305486812
still has the same tags.

Hi!
I changed typo highway=Path to path here:
changeset/54091396

Hi and welcome to OSM!
I've noticed this changeset because of the unusual tags like highway=Hẻm 479
used here:
way/542690408
I assume that "Hẻm 479" is the name of the road and
In this case you should use name=Hẻm 479
The tag key highway gives the type of road, in this case probably highway=residential. See also highway=*
If you want to map access rules see access=*
but this is rather complicated for a beginner.
Please correct the data and continue.
Happy mapping!

Hi!
Please review way way/542829538
The tag highway=mini_roundabout is for nodes, not for circular ways.
The connected ways in the south have no tags.

What tags did you use? See
way/406674820/history
Was it wrong: I think yes, the tags are not useful for a way, but they may be correct for the node node/263203387
Feel free to fix it if you remember what it was, if not, maybe add a note that this junction needs survey.

Changed it to service now.

I meant this node
node/263203387
I am not a local, I just stumbled over the wrong tag on a way, Anyway, a traffic_light is not that important ;-)

Hi!
Why is the road still tagged as highway=4wd_only ?

OK, I've deleted the way. What about adding the tags to the shared node ?