Lafayette resident Rik Sheldon attempted to register.
"The state, and perhaps even the country, is headed that way potentially, and I wanted to be in the system as opposed to having this card that might not even be valid in the future," said Sheldon.
RELATED: How to show proof of vaccination in SF or anywhere in CA
Sheldon and his wife both received the Pfizer vaccine.
"Her registration went very swimmingly, got her QR code right away, so I knew what was supposed to happen. But when I entered my information, it said there was an error and my information was not linked properly," said Sheldon.
"I was not too happy about it," he continued.
Muneeb Khan in Foster City had a similar experience.
"When I did mine everything came out correct. I was done within five minutes. There were no problems," said Khan.
"My parents weren't so lucky," he continued.
VIDEO: SF issues vaccine mandate for indoor settings like bars, restaurants and gyms
When his mom tried to register, only one dose came up.
"But it was the second date and the second dose is completely missing. With my dad the two dates are flipped," said Khan.
Khan's parents could register, but the information that came back was incorrect.
The California Department of Public Health declined an interview but told the ABC7 News I-Team more than 2.5 million digital records have been delivered to date, and that more than 85% of people who request their record have it delivered.
RELATED: Fake COVID vaccine card sales are ramping up online, cybersecurity expert says
CDPH says when there's a delay in someone retrieving their record, it is due to missing or incorrect contact information that was not sent to the state, and therefore isn't in the state's system.
In other words, what a vaccinated person enters into the my-vaccine-record portal might not match the information someone else entered and sent to the state.
CDPH recommends using the virtual assistant tool on its website. Ultimately, that's what worked for Sheldon after he uploaded his ID and vaccination card.
"Finally after two weeks, it finally was resolved and I got the code," said Sheldon.
Khan's parents did the same but they're still waiting.
"I'm not surprised that it hasn't gone smoothly, but the sense of urgency, especially in a pandemic, I think they'll try to fix these problems quicker than other state programs," said Khan.
Having trouble loading the tracker above? Click here to open it in a new window.
RELATED STORIES & VIDEOS:
- Map shows which counties can, can't reopen under reopening tiers
- Cheat sheet: What you can and can't do after being fully vaccinated
- How to register for a COVID-19 vaccine in every Bay Area county
- Map shows everywhere you can get a COVID-19 test in the Bay Area
- Interactive map shows what's closed and what's reopening in the San Francisco Bay Area
- Data tracker: Coronavirus cases, deaths, hospitalizations in every Bay Area county
- Third stimulus check calculator: See how much you could get
- COVID-19 Diaries: Personal stories of Bay Area residents during pandemic
- Get the latest updates on California EDD, stimulus checks, unemployment benefits
- Coronavirus origin: Where did COVID-19 come from?
- What is a COVID-19 genetic, antigen and antibody test?
- What does COVID-19 do to your body and why does it spread so easily?
- Coronavirus Timeline: Tracking major moments of COVID-19 pandemic in San Francisco Bay Area
- Coronavirus Doctor's Note: Dr. Alok Patel gives his insight into COVID-19 pandemic