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## Resource: Introduction

## Article: Introduction

## Article Link: https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/introduction.md

## Article Content:

# About the Member-to-Member Blocks API

The Member-to-Member Blocks API allows site members to block other members. After a member blocks another member, the 2 members no longer see each other on the site, for example in member lists and on member profiles. The blocked member isn't notified about the block.

With the Member-to-Member Blocks API, you can:

- [Block](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/block-member.md) and [unblock](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/unblock-member.md) members on behalf of the current member.
- Retrieve the [members the current member blocked](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/list-current-member-blocking.md).
- Retrieve [all blocks involving a member](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/list-member-blocks.md), in both directions.

Blocks also affect the results of the [Members API](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/member-management/members/introduction.md). For details, see [Integration Guide](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/integration-guide.md).

## Before you begin

It's important to note the following points before starting to code:

- A site must have the [Wix Members Area](https://www.wix.com/app-market/web-solution/members-area) installed from the App Market.
- Block Member, Unblock Member, and List Current Member Blocking act on behalf of the current member, so they must be called with a site member identity.
- Each pair of members can have a single block. A member can't block a member who has already blocked them.
- A member can remove only blocks they created. A blocked member can't remove a block.
- Blocks can't involve the site owner or site contributors. When a member becomes the site owner or a contributor, all blocks involving them are removed.

## Use cases

- [Let members manage their blocked list](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/sample-flows.md#let-members-manage-their-blocked-list)
- [Hide content from blocked members in a custom feed](https://dev.wix.com/docs/api-reference/crm/members-contacts/members/members-v2/member-to-member-block-v1/sample-flows.md#hide-content-from-blocked-members-in-a-custom-feed)

## Terminology

- **Member**: A person who signed up to a site's Members Area.
- **Block**: A relationship in which 1 member hides another member from themselves. The 2 members can no longer see each other on the site.
- **Blocking member**: The member who created the block.
- **Blocked member**: The member the block was created on.