I've been pinged!

How do you know you have been 'pinged'? Do you need to keep checking the app or do you get a text message? Just wondered?
I keep forgetting to switch tracing off Whilst at work (I'm in PPE with my phone elsewhere - I am supposed to switch it off at work).
I think it would be useful to know when/ where contact occurred . I suppose that might breach some data protection?

I was told the date but not where, seeing I was at work 10am-10pm I'm assuming it was then. We are supposed to switch it off when at work as we are a 'Covid safe workplace' but since Covid has been rife all through lockdown etc and specifically in teams working closely together then PPE obviously isn't the golden bullet they say it is.

So this morning got an iMessage to say I was a close contact with someone who tested positive. There was a link to order a test kit which was a bad link. Messaged the family on Messenger to ask if any of them had tested positive as they are the only people I have had close contact with. DD1 asked me to screenshot and when I sent it told me it was a scam to get you to buy a testing kit. The app pings you if you are a close contact not iMessage. None of them were positive. So beware of this! Rules have changed anyway now in all 4 UK countries. Test and Trace hasn't changed their guidance alongside the rules so very confusing.

My bloke got a text saying he’d been in contact with someone contagious and to order a PCR. Clearly a scam. Beware. Don’t click on link.