have you selected manual or automated appending of the query string parameter? basically all traffic that arrives from the google ads account should have an additional parameter "s_kwcid". what you can do to check:
a) create a table and see if you have "AMO ID" with "occurrences"? if there are no occurrences, you have an issue in tagging the links in the ad account
b) create a processing rule and write the parameter "s_kwcid" in a prop. just to see if you really do not get any values on the incoming links
if you have occurrences and you have waited some days after setup and the first incoming traffic, reach out to CC to check the setup in the backend