Hello Patrice,
In order to make this work.
First of all I created the Survey table, with all the attributes I was looking for.
I then downloaded the Survey table in a File Geodatabase. This creates the structure I needed.
I then related the Survey table to the feature class I wanted it to work with.
Then in ArcMap I added both the feature class and survey table. With the survey table the first item in the table of contents.
I then published this to ArcGIS Online.
Finally I updated the Survey123 project in access to point to the URL of the published feature service.
The key here is I did not try and replicate the Survey123 feature class in ArcMap. I let Survey123 generate the feature service for me then I copied it back to ArcMap and finally republished it. That way everything is as it was designed in Survey123.
Cheers
Gordon