# Logs

Review Flux app execution history, message payloads, and action results.

In this document we explain how to view the execution history of a Flux App, including the message history of channels and the run history of actions.

Soracom Flux retains the execution history of Flux Apps based on your subscription plan.

| Plan | Retention Period |
| - | - |
| Developer | 7 days |
| Standard | 40 days |
| Enterprise | [Contact us](https://www.soracom.io/contact/) |

See [Plans](https://docs.soracom.io/en/services/flux/plans) for an overview of Soracom Flux subscription plans.

## Check the Execution History of a Flux App

To check the execution history of a Flux App in Soracom Flux Studio, follow these steps:

1. Open the **Studio** tab of the Flux App.

2. Click on the **History** tab.

   - Click **Copy** to copy the logs to your clipboard.
   - Click **Format JSON** to format the logs.

From the execution history of the Flux App, you can check the the event source events which triggered the Flux App, the message and context of the event, and the input and output of the actions.

## Check the Message History of a Channel

To check the message history of a channel in Soracom Flux Studio, follow these steps:

1. Open the **Studio** tab of the Flux App.

2. Click on the channel.

3. Click on the **Messages** tab.

   - Click **Copy** to copy the logs to your clipboard.
   - Click **Format JSON** to format the logs.

   ![Checking the channel message history.](https://docs.soracom.io/_astro/view-channel-message-log.CZgw1qgB_TmMMD.webp)

From the message history of the channel, you can check the message and context.

## Check the Run History of an Action

To check the run history of an action in Soracom Flux Studio, follow these steps:

1. Open the **Studio** tab of the Flux App.

2. Click on the action.

3. Click on the **Run History** tab to view the log of each run of the action.

   - Click **Copy** to copy the logs to your clipboard.
   - Click **Format JSON** to format the logs.

   ![View Action Run History](https://docs.soracom.io/_astro/view-action-log.CTi_cUn5_Z1RKjoW.webp)

From the run history of the action, you can check the input and output data, and the execution status.