The ISBLANK function is a simple function used to test if a cell is blank.

ISBLANK takes 1 required argument and no optional arguments:

Syntax: ISBLANK(value)

#1)
Using the ISBLANK function:
#2)
The arguments for the ISBLANK function are:
Argument Required? Description
value Required Value refers to an empty cell.

Summary

The ISBLANK function is a simple function used to test if a cell is blank.
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