This is cross posted to geonet as well: https://geonet.esri.com/thread/196111-updating-feature-service-to-webmap-does-not-update-with-new-data
I have a web feature service on a web map and that map shared through an web app. This service is just a small point layer and I update it every month with updated points. I then upload the layer to agol using the "overwrite" option on my existing point feature service. However my web map does not update with the new points automatically. I have to re-add the service as a new layer and remove the previous one in addition to manually copying my pop-up configs over to the new layer. I was under the impression the overwriting the service would in turn have the updates roll out to the web map layer. Am I missing a step here or is this how the overwrite feature works?
Russ lead me to the correct answer to solve this issue. I just needed to set my refresh interval Support docs can be found here: http://doc.arcgis.com/en/arcgis-online/create-maps/set-refresh-interval.htm