Hi,
I recently switched our aerial imagery provider to Metromap. I have an enterprise subscription which uses Microsoft's SSO to login users to the web app which has worked great. To use within Portal for ArcGIS I created an API to the WMTS which works great in portal. Note "Austalia_latest" is the API layer.
![map viewer.jpg map viewer.jpg](https://community.esri.com/t5/image/serverpage/image-id/31620i6026A9B971BD8902/image-size/large?v=v2&px=999)
![portal item2.jpg portal item2.jpg](https://community.esri.com/t5/image/serverpage/image-id/31619iBFDCB0B61557E4BC/image-size/large?v=v2&px=999)
When the same map is accessed via one of ESRIs apps such as Collector I get the prompt "Secured Basemap". Thing is as I use an API so there is no username password.
![explorer app.jpg explorer app.jpg](https://community.esri.com/t5/image/serverpage/image-id/31618i81E200A0C6910839/image-size/medium?v=v2&px=400)
I reached out to Metromaps support but haven't had a resolution. My field workers are currently having to cancel the prompt and switch to a different basemap. Has anyone else experienced this?
Cheers,
James