So I'm trying to use the following formula to check if either of 2 cells in a column is blank and if neither if blank that return the number of days between them and if either is blank to return an empty cell:

```
={"Consultant Turn Around";ArrayFormula(IF(OR(ISBLANK(J2:J),ISBLANK(K2:K))),,NETWORKDAYS(J2:J,K2:K,Data!B2:B))}
```

However I'm getting the error:

Wrong number of arguments to ARRAYFORMULA. Expected 1 arguments, but got 3 arguments.

and I can't for the life of me figure out what I'm doing wrong. I think its something with how the `OR`

statement works since I have a very similar formula that only checks one cell that works fine.

## Best Answer

There was a problem with brackets

However, it will return blank if there is at least one case This formula would return list of day differences and blank cells in case any of the dates is missing