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## Resource: Introduction

## Article: Introduction

## Article Link: https://dev.wix.com/docs/api-reference/business-management/functions/function-spi-configurations/introduction.md

## Article Content:

# About the Function SPI Configuration API

The Function SPI Configuration API allows you to create, access, and manage service plugin configurations for [functions](https://support.wix.com/en/article/functions-about-functions). Service plugin configurations define the data that a function sends to a business solution. Use this API together with other [Wix Functions APIs](https://dev.wix.com/docs/api-reference/business-management/functions/about-wix-functions-apis.md).

With the Function SPI Configuration API, you can:

- Configure the specific data that functions send to Wix business solutions.
- Ensure configurations match the required schema before deployment to prevent runtime errors.

## Function SPI configurations in the Wix Functions ecosystem

Many function types require a function to have a service plugin configuration. This configuration defines the data format that a function sends to a business solution. A function can't have more than 1 service plugin configuration. Learn more about [service plugins and Wix Functions](https://dev.wix.com/docs/api-reference/business-management/functions/about-service-plugins-and-wix-functions.md).

When creating a function by calling [Create Function Production](https://dev.wix.com/docs/api-reference/business-management/functions/function-productions/create-function-production.md) or [Create Function Builderless Production](https://dev.wix.com/docs/api-reference/business-management/functions/builderless-productions/create-function-builderless-production.md), service plugin configurations are created together with the function. Learn more about [quick creation and configuration](https://dev.wix.com/docs/api-reference/business-management/functions/about-function-creation-and-activation.md#quick-creation-and-configuration).

Updates to service plugin configurations do not immediately impact active functions. This means that if you update a service plugin configuration after you [activate](https://dev.wix.com/docs/api-reference/business-management/functions/function-activations/upsert-function-activation.md) a function that uses it, there will be a difference between the latest version of the service plugin configuration and the one that the function currently uses. To publish the latest service plugin configuration, reactive the function by calling [Upsert Function Activation](https://dev.wix.com/docs/api-reference/business-management/functions/function-activations/upsert-function-activation.md).


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