> For the complete documentation index, see [llms.txt](https://docs.skyone.cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.skyone.cloud/english/skyone-studio/modules/settings-and-operations/module-settings/connectivity-rfc.md).

# Connectivity: RFC

### Overview <a href="#overview" id="overview"></a>

**RFC** connectivity is used to enable integration with systems that provide functions and services via the Remote Function Call (RFC) protocol.

RFC is a communication protocol used mainly in SAP systems to allow remote execution of functions and methods in SAP systems and other applications, and is useful for data access and transformation, authentication and more.

Once you have added at least one operation to your module, you will no longer be able to change the selected **Connectivity Type**, but will first have to delete all the operations you have created.

***

#### How to connect an account <a href="#how-to-connect-an-account" id="how-to-connect-an-account"></a>

In the case of the RFC connectivity type, no authentication is required.

To add a connected account, click on "**Connected account"** and then "**Add connected account"**.

<figure><img src="/files/Pd21H9MG6l55sEUCJKSy" alt=""><figcaption></figcaption></figure>

The following modal will then appear:

<figure><img src="/files/DbuELECYpr60dR34ydD0" alt=""><figcaption></figcaption></figure>

Fill in the details:

1. **Terminal:** select a terminal so that the connection is made through the corresponding "**Agent**";
2. **Account name**: name of the registered account;
3. **Host**: IP of the database host;
4. **System number**: system number;
5. **Client**;
6. **User**;
7. **Password**.

After filling in the details, click on "**Create account".**

That's it! Your connected account has been created and can be used by other modules and flows, appearing among the options of accounts configured in both cases.

Finally, click on "**Save changes"** to configure your module settings.

{% hint style="warning" %}
Important: Once you have saved your changes, you will no longer be able to change the Connectivity type.
{% endhint %}

Next step: [Create operations for the module](/english/skyone-studio/modules/settings-and-operations/operations.md)

Read also: [Connected accounts management](/english/skyone-studio/modules/settings-and-operations/module-settings/connected-account-management.md)


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