> ## Documentation Index
> Fetch the complete documentation index at: https://order-limit.xrtotech.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How Shopify customer tags and sign-in restrictions work

> Choose customer-tag allowlists, blocklists or sign-in-only rules. Understand any-tag matching and product scope without confusing eligibility with quantity.

Customer restrictions control who can buy applicable products. Unlike customer-tag quantity rules, these rules determine eligibility rather than the allowed number of units.

## Choose the tag direction

| Setting | Effect |
| - | - |
| **Customers with these tags cannot purchase** | Blocklist: a match with any listed tag restricts the customer |
| **Customers without these tags cannot purchase** | Allowlist: the customer needs at least one listed tag |

For VIP-only sales, add `VIP` and choose the second option. Multiple tags use “any”, not “all”. Listing `VIP` and `Wholesale` does not require both.

## Require sign-in

Enable **Require a customer account sign-in** to make guests sign in before purchasing applicable products. This helps identify tags instead of relying on an unidentified visitor.

For sign-in only, leave the tag list empty and enable the account requirement.

> [!NOTE]
>
> All buyers of the applicable products must sign in when this requirement is enabled, even customers who are not blocked by tags.

## Create a customer rule

1. Open **Customer restriction rules** from the home page and create a rule.
2. Enter tags and click **Add tag**, or skip tags for sign-in only.
3. Select the correct tag mode and account requirement.
4. Select all products, specific products or collections under applicable items.
5. Choose the timing, select **Active**, and click **Create and activate** (**创建并启用**; **保存并启用** when editing).
6. Turn on **Enable customer restriction rules** on the customer overview page.

## Purchasing is different from browsing

These rules do not automatically hide product pages, prices or collections. They check buying eligibility and are not page-access control.

Try [member exclusives](https://order-limit.xrtotech.com/en/scenarios/members-only.md) or [blocking tagged customers](https://order-limit.xrtotech.com/en/scenarios/block-customers.md).

## Require sign-in without a tag

Leave tags empty and enable the sign-in requirement. Follow [require sign-in](https://order-limit.xrtotech.com/en/scenarios/login-required.md) for setup and identity tests.


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