I've uploaded a tile package and published to ArcGIS Online. Now I'm trying to format the webmap for offline use in Field Maps with sideloading. That's ancillary - the issue is how do I add the tile layer as a Basemap from the basemap gallery. I don't see it in the basemap gallery, my only option is to add as a feature layer. However, in Field Map Designer, I can't designate this as a basemap because it's not...a basemap in the webmap. I understand for offline purposes I can provide the filename of the sideloaded tilepackage, but this deviates from ESRI's instructions. Can I add my own tile layer as a basemap?
Essentially, can my Tile Package replace World Imagery:
Thanks.
add the tile layer to a map viewer, save it and share web map to your basemap group.
you should then be able to add/use it as a basemap.
for the sideloading in Field Maps App, transfer the tile package locally, then in Field Maps Designer, you can set the name of the tile package in the offline settings:
R_