---
title: "Write Value To Data Table Step"
url: "https://docs.robotiq.ai/en/article/write-value-to-data-table-step"
language: "en"
last_updated: "2025-12-24T15:11:29.253Z"
---

# Write Value To Data Table Step

The Write Value To Data Table step changes a specific cell inside a data table variable that already exists. You use it to change the value at a chosen column and row.

## How to Use Write Value To Data Table

Use this step to change data stored in a data table while your automation runs.

### Step 1: Add the Step to Your Process

1.  Drag and drop the **Write Value To Data Table** step into your process.

### Step 2: Set Up the Step

1.  **Datatable variable name:** Pick the data table variable you want to change.
2.  **Column Index:** Type the number for the column you want to update. You can use a variable or a direct number.
3.  **Row Index:** Type the number for the row you want to update. You can use a variable or a direct number.
4.  **Value or variable to write:** Give the new value or pick a variable whose value you want to put into the cell.

**Important:** Column and row numbers usually start at 0.

## What the Settings Mean

**Step name** (Optional)

-   A custom name for this step. This helps you find it in your process.

**Column Index** (Required)

-   The number for the column where you want to write the value.
-   Example: `0` for the first column, `1` for the second.
-   Use a variable if the column number changes.

**Row Index** (Required)

-   The number for the row where you want to write the value.
-   Example: `0` for the first row, `1` for the second.
-   Use a variable if the row number changes.

**Datatable variable name** (Required)

-   The name of the data table variable you are changing.
-   Example: `myDataTable`
-   This must be a variable that already exists and is of the "Datatable" type.

**Value or variable to write** (Required)

-   The data you want to put into the cell.
-   Example: `"New Text"`, `123`, or a variable like `myStringVariable`.

## Related Articles

-   [Create New Data Table Step](https://docs.robotiq.ai/en/article/create-new-data-table-step)
-   [Update Value In Data Table Step](https://docs.robotiq.ai/en/article/update-value-in-data-table-step)
-   [Datatable Read Step](https://docs.robotiq.ai/en/article/datatable-read-step)
-   [Set Variable Value Step](https://docs.robotiq.ai/en/article/set-variable-value-step)

## Need Help?

Can't find what you're looking for? Join the [Robotiq Community](https://community.robotiq.ai/home/) to get help from other users and the Robotiq team.

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