Excel: implementing Custom Data Validation List Not Recognizing Dynamic Named Ranges in Office 365
I've been trying to set up a custom data validation list in Excel (Office 365) that uses a dynamic named range, but I'm running into issues... Despite defining a named range that grows based on the number of entries, the data validation dropdown is not populating as expected and keeps showing a 'The list source is not valid' behavior when selecting the cell. Here's what I did: 1. I created a dynamic named range called `ItemList` using the formula: ```excel =OFFSET(Sheet1!$A$1, 0, 0, COUNTA(Sheet1!$A:$A), 1) ``` This should include all non-empty cells in column A starting from A1. 2. In the cell where I want the dropdown, I set the data validation to use my named range. I chose 'List' for the validation criteria and entered `=ItemList` in the 'Source' box. Despite this, when I click on the cell, I get the behavior message: 'The list source is not valid.' I double-checked the named range and it appears to be correctly set up. Also, I ensured there are no blank cells in the intended selection range that could throw off the `COUNTA` function. I also tried using a table instead of a named range, but that didn't work either. Is there something I'm missing here? How can I get my dropdown list to recognize the dynamic range properly? This is my first time working with Excel latest. What are your experiences with this? Hoping someone can shed some light on this.