Excel VBA: Conditional Data Entry in H8

Job ID: 39044235

Budget: $10 – $30 USD

I'm looking for a skilled Excel VBA developer. I need a worksheet modification that will control data entry into cell H8 based on the status of cell D8, and enforce data type constraints.

Requirements:
- If cell D8 is BLANK: Allow user to enter data into cell H8.
- If cell D8 IS NOT BLANK: Populate cell H8 with data from cell H12 and lock the cell from user changes.
- Implement numeric-only validation for cell H8.

Additional Information:
- Cells D8, H8, H12 are unlocked and the sheet is password protected.
- The functionality should persist for future users, even after data row 8 has been saved and cleared by an existing VBA script.

Ideal skills include:
- Proficiency in Excel and VBA
- Experience with implementing data validation and conditional cell behavior
- Understanding of password-protected sheets in Excel.