I have two datasets, one with administrative boundaries from one source, and coastlines from another source. I want to use both these sources to create a map, however the administrative boundaries are not the same as the coastline, meaning they overlap on certain areas. Is there anyway I can get these to connect to each other so that they're both following the exact same path? I'm using ArcGIS Pro.
Using the 'Method' parameter to control how the overlap is dealt with, the 'Remove Overlap' tool in ArcGIS Pro would appear to do what you need.
It's also worth familiarising yourself with the Overlay Toolset - https://pro.arcgis.com/en/pro-app/2.8/tool-reference/analysis/remove-overlap-multiple.htm#L_