My online account daily usage section hasn't updated but I have smart meters - what is issue?

The meter may be working at your end but not connecting to the main system. It’s worth keeping a watch to check. 
You can also monitor the meter readings so that you know what’s happening daily (or as frequently as you need)

I’m in a similar situation: no readings recorded since the weekend and billing stalled except for the unremitting rise in standing charges, usage data updated a bit with (wildly inaccurate) guesses:
  

I have a 2016-vintage SMETS1 meter which ‘they’ have tried on several occasions to ‘adopt and enrol’ on to the DCC system, and I suspect that these anomalies in the online account result from yet another attempt. Is yours also a SMETS1 meter yet to be E&A’d? This tool will tell you: https://smartmetercheck.citizensadvice.org.uk  

And a PS: this (Saturday) evening, my online account was miraculously brought up to date, with readings, usage data and billing just as they should be. There’s still no sign of my meter on the DCC, system though, so I’m afraid that if a migration attempt was the cause of this hiatus, it looks like it failed again 😢 - but I’ll have another look on Monday. 

My account has now updated but I am a bit concerned as I used a lot of gas kWh (over 4) at 3am when the heating was programmed to come on when the temperature dropped below 15 degrees and I did not use any gas at that time going back to Feb 1st - very strange results at the moment! I am also being told that I used a small amount for cooking which is impossible as I have all electric appliances and only use gas for heating and hot water!

It’s worth looking to see if any of that is estimated (can happen if signal is low). Also don’t put too much faith on the ‘analysis’ section

@Debbiedoo58 ditto about impossible usage categories. Apparently most of my gas is used by my ‘water heater’ but I only have a gas hob. 

I just became OVO customer. 

I wanted to check my usage, but was confused.

First, I selected Usage - Month page - everything is good !

then I went to day usage page and …

How it is possible ? There are Month data , but there are no Day data ?

Ok… but if there are Month data with each day usage from 1 to 15th February, in month report  must be reading for each this day ? Is not it ? (maybe day report has vacation today ).

But on the reading page there is nothing !

Ok, bring more heat - I tried to send manual reading - Nothing with OOPS….

Do I need to check my meter ? And how can  I do this ?

My Landis Gyr E470 - show that cell network is OK,  maybe I should check something else ?

Hi @Denys A. there are a few things to check. The graph may still be estimated readings although when you say ‘just became’ an OVO customer, I’m not sure from which day. 
On your meter readings page, it looks like the meter serial number is incomplete which may be why you can’t put in a reading at the minute. 
You can check your meter like this ..

Also after any switch, the meter will take a little time to re-establish its communications to the data centre

The serial number is OK, I removed a part of the number for privacy reasons of my landlord 🙂

I try to reach support’ chat but it is a shame ☹️ no one answers from the morning …

I also cannot sent readings manually :

Oops, there’s a problem…

Check your details and try again or contact us

But I cannot contact no one answers !

I have SMETS2 E470 Meter,  and this meter was not changed for 5 years !

And all time I and previous occupant use the same meter and the same provider OVO.

Do I need to press some buttons on the meter to send reading  via DCC ?

If you need to contact the team on a weekend after 2pm, their Social team is available. You can send a direct message (DM) on Facebook or Twitter from 9am - 5pm. 
Otherwise the support team are available during the week. 
On your meter, if you’ve checked it’s ok you just need to wait for it to connect.