# List memberships

**Mews Operations** uses the [List memberships operation](https://docs.mews.com/loyalty-partner/api-operations/memberships#post-memberships-list) to retrieve current membership data for one or more customers using their `providerMembershipId` values. This operation is used in both manual and automated workflows to keep loyalty data up to date in Mews.

## Manual membership sync

Front desk staff click **Refresh** on a customer profile that is already linked to a membership in the partner system. Mews fetches the latest membership data from the partner system.

<figure><img src="https://3946584615-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNXX5WlJYsdpRtizxNDPz%2Fuploads%2Fgit-blob-36622b93a69b8a864d3f26c18cd42ca0be964789%2Fmanual-membership-sync.png?alt=media" alt="Screenshot of a Mews customer profile with a Refresh button to manually sync membership data from the partner system." width="563"><figcaption><p>Manual membership sync in Mews: front desk staff use the Refresh button on the customer profile to update membership details from the partner system.</p></figcaption></figure>

## Automatic membership sync

Once a day, an automated job identifies customers arriving the next day and fetches the latest membership data for each of them from the partner system.