@Strongsilence-CPA The question was about a California Stimulus https://www.ftb.ca.gov/about-ftb/newsroom/golden-state-stimulus/help.html

@EJO3 If your client did not receive the stimulus, you should contact the Practitioner Hotline on their behalf, assuming you are a third party designee. https://www.ftb.ca.gov/about-ftb/newsroom/tax-news/september-2018/third-party-designee-and-implied-c....

You might also look for "stimulus" in the 2021 FTB 540 instructions.