Not able to see related tables in Map Viewer

[vl-driscolls]

Hello,

From this blog post: https://www.esri.com/arcgis-blog/products/arcgis-online/mapping/introducing-related-record-editing-i...

I am expecting that I should be able to see related tables in form builder.

However when I open a Web Map item, I am not seeing a category for related records:

however when I open the same web map in Field Maps, I do see the related records as expected:

The map is pulling from a Feature Layer which is hosted on a standalone ArcGIS server. Is there anything I would need to do to enable the tables? Ultimately I would like to eventually create an Experience Builder app which allows users to create related records.

[bbollin]

Hi @vl-driscolls, what version of enterprise are you running? Are you configuring the form on the parent feature layer?

There isn't anything you'd need to do to "enable" the tables, beyond having a relationship class published from ArcGIS Pro and following the blog steps as you pointed out in the form builder. 

If you can share the service publicly I can take a look, otherwise the best solution is to log an issue with support so the team can investigate. Thanks!

[vl-driscolls]

We are using enterprise version 10.9.1, the layer I am looking at is both a child of and a parent feature layer. All related layers are polygon feature classes