Hello team,
I have the requirements and configured many ways (sub-grid in metadata of the web form steps, parent-child entity permission, standalone permission for each entity) still - I am not able to see the second entity in sub-grid (primary entity is configured by web forms step).
1/ Primary entity: account (OOB)
2/ Secondary entity: family (custom).
Entity relationship: Account 1:N Family.
Req: record of family will be shown in the Account entity sub grid on PowerApps portals.
Web form steps configuration:

On portals:

Please suggest if you have any idea/suggestion about this.
Thanks.
@EricRegnier