> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Formula error codes

> When a formula is invalid or can't be computed for the current row, an error code shows in the cell.

When a formula is invalid or can't be computed for the current row, an error code shows in the cell.

Common AI Table error codes:

| Error code         | Meaning                                                                                                                 | Example                   |
| ------------------ | ----------------------------------------------------------------------------------------------------------------------- | ------------------------- |
| #NULL!             | **Null error.** The formula contains an invalid range operator or specifies two ranges that don't intersect.            |                           |
| #DIV/0!            | **Divide-by-zero error.** Division where the divisor is zero or references an empty cell.                               | `2/0`                     |
| #REF!              | **Invalid reference error.** A referenced column was deleted or changed.                                                |                           |
| #N/A               | **Value-not-available error.** A value isn't available to the function — lookup found nothing.                          | `REGEXEXTRACT("def","a")` |
| #VALUE!            | **Value error.** Wrong argument or operand type — e.g., text where a number is expected.                                | `SQRT("test")`            |
| #ERROR!            | **Formula parse error.** Malformed formula.                                                                             | `test formula`            |
| #NUM!              | **Number error.** Invalid numeric value, or a result too large or small to display — e.g., square root of a negative.   | `SQRT(-1)`                |
| #NAME?             | **Invalid name error.** Unrecognized text in the formula — typo in function or name.                                    | `SUMMM()`                 |
| #TOO\\\_LARGE!     | **Result-too-large error.** Result exceeds 200 items — e.g., a lookup returning more than 200 values.                   |                           |
| #MISMATCH\\\_TYPE! | **Type mismatch error.** Result type doesn't match the column type — common after the original value is changed.        |                           |
| #CIRCULAR!         | **Circular reference error.** The formula refers, directly or indirectly, to its own cell.                              |                           |
| #UNSUPPORT!        | **Unsupported-feature error.** A function or feature in the formula isn't supported yet — e.g., cross-table references. | -                         |

## More formula FAQs

See [Formula FAQ](/aitable/formulas/formula-faq).