最新のデータを送って下さいって英語でなんて言うの？

"Up to speed' is a common phrase that means fully informed or up to date with information. It is used often in business situations and is a polite way of asking to be given or shown all relevant recent data/information.
‘Bring us up to speed on the sales figures.’
The phrase can also be used to reassure clients that they will be kept fully informed. e.g
‘He'll keep you fully up to speed on your investment.'

To 'ping' someone is to send someone data of some kind via the internet If you wish the data to be sent by courier or other means, then you would need to make that clear.

Please can you send me the most recent data? - This is a good polite way to make this request.

Can you send me the latest numbers? - This is a more casual expression and can be used if you are on friendly terms with your business partner.

Both phrases are clear and can be used in this situation.

To be more formal you can use the following:
Dear ...
This is a urgent request to have the latest updated data sent to me. Your prompt response will be highly appreciated.

The word "update" means that you want the latest data.

Forward: send a copy, share
Latest: up to date
Data: information

We can use these sentences if we want to sound professional when asking for information to be sent to us.
We can add in the word 'please' to be polite in our request.