How to add tooltip for gird cell based on data value

Hello, 

Thank you for your question.

Tooltips can be added to all data cells via the customizeCell() API call. We suggest adding a separate tooltip tag with a title attribute to each cell.

cell.text = cell.text + `<div class='tooltip' title='${data.label}'></div>`;

Also, tooltip tags should be aligned with CSS to fill the cell. You are welcome to check the example: https://jsfiddle.net/flexmonster/74gt3ukr/ 

Please let us know if this solution would work for you.

Best Regards,
Maksym

Hello, 

Hope you are doing well.
Our team is wondering if you had time to check the provided approach for tooltip implementation. 
Please let us know if it works for you.

Best Regards,
Maksym