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The #REF! error shows when a formula refers to a cell that’s not valid. This happens most often when cells that were referenced by formulas get deleted, or pasted over.

The following example uses the formula =SUM(B2,C2,D2) in column E.

A formula using explicit cell references like =SUM(B2,C2,D2) can cause a #REF! error if a column is deleted.

If you were to delete column B, C or D it would cause a #REF! error. In this case we'll delete column C (2007 Sales), and the formula now reads =SUM(B2,#REF!,C2). When you use explicit cell references like this (where you reference each cell individually, separated by a comma) and delete a referenced row or column, Excel can’t resolve it, so it returns the #REF! error. This is the primary reason why using explicit cell references in functions is not recommended.

Example of the #REF! error caused by deleting a column.

Solution

  • If you accidentally deleted rows or columns, you can immediately click the Undo button on the Quick Access Toolbar (or press CTRL+Z) to restore them.

  • Adjust the formula so that it uses a range reference instead of individual cells, like =SUM(B2:D2). Now you could delete any column within the sum range and Excel will automatically adjust the formula. You could also use =SUM(B2:B5) for a sum of rows.

In the following example, =VLOOKUP(A8,A2:D5,5,FALSE) will return a #REF! error because it’s looking for a value to return from column 5, but the reference range is A:D, which is only 4 columns.

Example of a VLOOKUP formula with an incorrect range.  Formula is =VLOOKU(A8,A2:D5,5,FALSE).  There is no fifth column in the VLOOKUP range, so 5 causes a #REF! error.

Solution

Adjust the range to be larger, or reduce the column lookup value to match the reference range. =VLOOKUP(A8,A2:E5,5,FALSE) would be a valid reference range, as would =VLOOKUP(A8,A2:D5,4,FALSE).

In this example, the formula =INDEX(B2:E5,5,5) returns a #REF! error because the INDEX range is 4 rows by 4 columns, but the formula is asking to return what’s in the 5th row and 5th column.

Example of an INDEX formula with an invalid range reference.  Formula is =INDEX(B2:E5,5,5), but the range is only 4 rows by 4 columns.

Solution

Adjust the row or column references so they're inside the INDEX lookup range. =INDEX(B2:E5,4,4) would return a valid result.

In the following example, an INDIRECT function is attempting to reference a workbook that’s closed, causing a #REF! error.

Example of a #REF! error caused by INDIRECT referencing a closed workbook.

Solution

Open the referenced workbook. You'll encounter the same error if you reference a closed workbook with a dynamic array function.

Structured references to table and column names in linked workbooks aren’t supported.

Calculated references to linked workbooks aren’t supported.

Moving or deleting cells caused an invalid cell reference, or function is returning reference error.

If you have used an Object Linking and Embedding (OLE) link that is returning a #REF! error, then start the program that the link is calling.

Note: OLE is a technology that you can use to share information between programs.

If you have used a Dynamic Data Exchange (DDE) topic that is returning a #REF! error, first check to make sure you’re referencing the correct topic. If you're still receiving a #REF! error, check your Trust Center Settings for external content as outlined in Block or unblock external content in Microsoft 365 documents.

Note: Dynamic Data Exchange (DDE) is an established protocol for exchanging data between Microsoft Windows-based programs.

Macro Issues

If a macro enters a function on the worksheet that refers to a cell above the function, and the cell that contains the function is in row 1, the function will return #REF! because there are no cells above row 1. Check the function to see if an argument refers to a cell or range of cells that is not valid. This may require editing the macro in the Visual Basic Editor (VBE) to take that situation into account.

Need more help?

You can always ask an expert in the Excel Tech Community or get support in Communities.

See Also

Overview of formulas in Excel

How to avoid broken formulas

Detect errors in formulas

Excel functions (alphabetical)

Excel functions (by category)

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