Google Forms can be used to deliver a study with CloudResearch in a similar manner to other survey platforms (like Qualtrics and SurveyMonkey).
In Google Forms set up your survey and then set up the secret completion code display:
Then get the Google Form link
On CloudResearch you can then select your panel if desired, add the Google Forms survey link URL and in the Tab (How workers are paid) enter the fixed secret completion code. (e.g. ABCDEF).