Add Unique ID from one polygon layer to another based on spatial relationship

JensJensen

Hello

I'm have two polygon layers, one have been dissolved, the other is the original data with a lot of smaller polygons in it. The polygon layers overlap each other.

Each of the dissolved polygons have an unique id, that I would like to add to all the smaller polygons, so I can see where the smaller polygons belong.

I'm thinking some kind of join or similar based on the spatial relationship (overlap), but I can't get it too work. Tried adding a concept illustration:

Input:				Wanted output
Dissolved polygon ID	Size			Small polygon size	Small polygon ID
4479	10			1	4479
				1	4479
				1	4479
				1	4479
				1	4479
				1	4479
				1	4479
				1	4479
				1	4479
				1	4479

JayantaPoddar

Check the following steps

1. Convert the small polygons to points layer Feature To Point—Help | ArcGIS Desktop 

2. Do a Spatial Join to migrate the data from the Dissolved Polygons to the Points.

3. Do a Spatial Join again to migrate the data from points to smaller polygons.

4. Delete the unwanted fields from the layer with smaller polygons. Delete Field—Help | ArcGIS Desktop