> For the complete documentation index, see [llms.txt](https://docs.videc.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.videc.de/acron-9.3/en/anlagenkonfiguration/prozessanbindung/variablen-f-hg/extvar-o-provider-id.md).

# External variable without Provider

### Identification

Make sure the name is unique, so as to ensure proper identification of the variable.

{% hint style="info" %}
Attention - DATA LOSS

If the variable's identifier is changed, all existing data are updated. This means any assignments will be lost if data from a plant backup are re-imported into the plant later. This relates to all data relating to the variable(s), such as comments, auto variables and reports.
{% endhint %}

### Name

The name of the variable helps to provide a clear overview in configuration; it is not a mandatory field.

### Description:

The description offers the facility to enter additional information on the external variable. This serves primarily as an aid to the project designer in enhancing user-friendliness when configuring the plant.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.videc.de/acron-9.3/en/anlagenkonfiguration/prozessanbindung/variablen-f-hg/extvar-o-provider-id.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.