We just started using our ArcGIS Online subscription so forgive me if this is a novice question. Our first user is reporting that the webmap identifier keeps changing when making edits so the web team are constantly having to update the value in the iframe code. He says it doesn't happen everytime and he can't figure out what type of changes result in the webmap value changing.
This doesn't sound right to me, but then again I've witnessed stranger behavior with ESRI software. 🙂