Hi,
I've do Summary reports whit Integromat, you need to agregate 3 Modules, previously to the Module "Survey123 create report"

1. Module "HTTP-Make a request": insert the URL whit the QUERY that you define for the report, this defines the ids to print.

2. Module "JSON - Parse Json": this define the structure of the information (Data) of the previous module.

3. Module "Tools - Set variable": this create a variable where goin to use the function join all the "Id's" separates whit commas.

4. Module "Survey123 - Create report": then you use the variable to define the "Feature ObjectID"

I hope this helps