Ok pop up box

[Isaacadete]

Hi I would like to create a Pop up message box, once a cell if filled, just warming the user to fill the next cell.

I know it is simple for you experts.
Please help me

[JOHN H. DAVIS]

Maybe?

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Works for Column A only. May not be what you are looking, if not please explain further.

[Isaacadete]

Thanks so much for kindly support.
SOLVED

Question: Can I prevent that from popping up if I click delete?
because If I click delete, to delete the content on the cell, still popping up the message.

[JOHN H. DAVIS]

Try:

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[Isaacadete]

You the Man!
You save me lots of time!
I need your help on another thing.

I want to convert decimal (duration) to hour on input.... if I input 0.25 on D13 I want the result as hour on D13 (which it will be 0:15).
Can you help me on this one? Its clear for you to understand. Do you want the test spreadsheet?

[JOHN H. DAVIS]

I think it would be best to start another thread for the conversion request. Be glad to helo out, but it's different from your original request and other may have some input too add.