# Field mapping

If Log mapping means redefining the identification of some fields in log data, then Field mapping is a feature that we provide to help you **adjust the data type of fields from the log to** the vMonitor system. Platform.

To change the data type to match the fields from the log, follow the instructions below:

1. Log in to <https://hcm-3.console.vngcloud.vn/vmonitor> . If you don't have an account, register for free [here](https://register.vngcloud.vn/signup) .
2. **Select the Log** folder .
3. Select **Field mapping.**
4. We will allow you to edit the data type if the field's original data type is of type **Number** or **Date** . The type of data initially recorded from the log is displayed in the **Type** column . Select ![](https://docs.vngcloud.vn/~gitbook/image?url=https%3A%2F%2Fdocs-admin.vngcloud.vn%2Fdownload%2Fthumbnails%2F49650644%2Fimage2023-4-27_9-37-38.png%3Fversion%3D1%26modificationDate%3D1682563058000%26api%3Dv2\&width=40\&dpr=4\&quality=100\&sign=33ff9ee\&sv=1).
5. If you edit on a field with data type **Number** , the system displays the **Edit field** screen . Select **the Format** appropriate to the field you are selecting:

<figure><img src="/files/p7QsvFP61r956MsS1KPM" alt=""><figcaption></figcaption></figure>

6\. If you edit on a field with data type **Date** , the system displays the **Edit field** screen . Select **the Format** and **Date format pattern** appropriate to the field you are selecting:

<figure><img src="/files/qA8dAXppqf5AbR2RYAz4" alt=""><figcaption></figcaption></figure>

7\. Select **Save** .


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