# Bidding & Autolisting

OpenSea Bidding tasks do now have the option to pre-approve the required [Listing Approvals](/nft-butler/features/listing-approvals.md) and defining your Listing Task config for future accepted bids. This will ensure Butler can start listing your assets right after a bid has been accepted.

{% hint style="info" %}
[PRO Access](/nft-butler/products-and-services/pro-access.md) is required in order to create or edit your Listing Task config on your bidding tasks. Further the Autolisting configuration will only be executed when you still have an active PRO Subscription once a bid was accepted
{% endhint %}

{% hint style="info" %}
Supported Blockchains on OpenSea Bidding Tasks:

* Ethereum (OS + Blur)
* Base (OS)
* Arbitrum (OS)
* Ape Chain (OS)
  {% endhint %}

<figure><img src="/files/JcCkv0L9og1EIFqKR4t9" alt=""><figcaption><p>Bidding Task, Approvals and Autolisting is available on different Tabs in your Bidding Task</p></figcaption></figure>

## Autolisting Requirements

When a new asset is received by one of your Butler wallets, Butler will proceed as following:

* Which bid have been accepted for this asset
* If the bid was created by one of your Butler tasks it will then check if there is an active Autolisting configuration on this task
* If yes it will automatically create the necessary Listing Tasks for the given [Marketplace(s)](#marketplace-selection) to start listing your asset, with respect to your [Minimum Profit Margin](#minimum-profit-margin)

## Autolisting Configuration

{% hint style="info" %}
The [Listing Task](/nft-butler/task-types/listing-task.md) configuration is the same as when creating it based on a specific Asset in the [Listing Engine](/nft-butler/features/auto-listing-engine.md). Only additional features are explained below.

In order to save your Autolisting configuration on a Bidding Task, head back to the B**idding Task tab** and hit **Save / Update** task as all configuration is stored in the same task.
{% endhint %}

### Listing Approvals

First of all at least 1 marketplace has to be [Listing Approved](/nft-butler/features/listing-approvals.md) before creating the Autolisting Configuration on this task. For **base** collections approvals need to be taken care manually by the User.

<figure><img src="/files/xyQTgSDubWcMqwK3SSTh" alt=""><figcaption><p>At least 1 listing approval is required on your bidding wallet before creating your Autolisting config</p></figcaption></figure>

### Marketplace Selection

Approved marketplaces can be selected from the dropdown. Multiple selects are possible and Butler will create an Autolisting task for each Marketplace when a bid got accepted.

<figure><img src="/files/u472PbMx6LmSAtsIYrd1" alt=""><figcaption><p>Creating Auto Listing configuration for OpenSea</p></figcaption></figure>

### Minimum Profit Margin

As additional security feature we're offering to set a Minimum Profit Margin requirement on top of the Start / End Listing price.

This safety feature will ensure the final End Listing Price will always respect your Minimum Profit Margin to ensure you can stay in profit while Butler starts listing new assets.

<figure><img src="/files/tJAVuNCgQt4T6MEfo5yM" alt=""><figcaption></figcaption></figure>


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