> For the complete documentation index, see [llms.txt](https://preorder-notify.tech-arms.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://preorder-notify.tech-arms.io/troubleshooting/faq.md).
# FAQ
Quick answers to what merchants ask us most. Something not working on your store? Start with [Preorder button not showing](/troubleshooting/preorder-button-not-showing.md) or [Notify me button not showing](/troubleshooting/notify-me-button-not-showing.md).
***
### Preorder
Can I show the Preorder button even when a product is in stock?
**Yes.** Open the campaign → **Products** tab → **When to show Preorder** → **Always**, then **Save**. The **Preorder** button then replaces **Add to cart** whatever the stock level.
Prefer to sell normally while you have stock and switch to preorder only when it runs out? Choose **Only when out of stock** instead.
[Learn more](/preorder/create-a-preorder-campaign.md#when-the-preorder-button-shows)
Can I put only some variants (e.g. one size) on preorder?
**Yes.** When you add products to the campaign, choose **Specific products** and tick only the variants you want. The other variants keep your theme's normal **Add to cart** button.
[Learn more](/preorder/create-a-preorder-campaign.md#which-products)
Can I limit how many units can be preordered?
**Yes**, when the campaign shows the button only on sold-out products:
1. Under **When to show Preorder**, choose **Only when out of stock**.
2. Tick **Limit inventory for Preorder** and enter the **Available inventory**, e.g. 50.
Once 50 units are preordered, shoppers can't add more to the cart. This option isn't available with **Reserve on fulfillment**.
[Learn more](/preorder/create-a-preorder-campaign.md#limit-inventory-for-preorder)
Can I run several campaigns at once?
**Yes.** If two published campaigns include the same product, only one shows: the one with the **lowest Priority number** (0 comes first). With equal priorities, the most recently created one wins.
For example, give a holiday campaign priority 1 and your all-year campaign priority 10: during the holiday, the shared products use the holiday campaign. When it ends, they fall back to the all-year one.
[Learn more](/preorder/manage-campaigns-and-priority.md#products-in-more-than-one-campaign)
How does a deposit work?
The customer pays part of the price at checkout and the rest later:
1. Open the campaign → **Settings** tab → **Payment**.
2. Choose **Deposit now, rest later** (or **Let customers choose**).
3. Set the deposit (percentage or fixed amount) and when the rest is due: days after the order, a fixed date, or when you fulfill.
The remaining balance is saved on the Shopify order. Open the order in Shopify Admin to collect it.
{% hint style="warning" %}
Deposits need **Shopify Payments** and **Use Shopify selling plan** turned on (campaign **Settings** → **Advanced**, on by default).
{% endhint %}
[Learn more](/preorder/deposit-and-partial-payment.md)
How do I tell preorder orders apart in Shopify?
Three ways:
* **Preorder note**: every preorder item carries a note (default **Note: Preorder**) in the cart, on the order and in order emails.
* **Order tags**: add up to 5 in the campaign's **Settings** tab → **Tags**, then filter by them on Shopify's **Orders** page.
* **Preorders tab**: **Preorder** → **Preorders** in the app lists every order with a preorder item.
[Learn more](/preorder/preorder-emails.md#find-preorder-orders)
***
### Back in stock
When exactly is the restock email sent?
As soon as the variant is back in stock (with **Send automatically when back in stock** on, the default). Everyone waiting gets one email, then moves from **Pending** to **Sent**.
* **Wait for enough stock**: tick **Only notify once inventory reaches a minimum quantity**, so you don't email 200 people for 2 units. Products that don't track inventory ignore this.
* **Send it yourself**: turn automatic sending off, then send from the variant's waitlist when you're ready.
[Learn more](/back-in-stock/restock-email.md#when-its-sent)
Can shoppers get the alert by SMS?
**Not yet**: restock alerts are sent by email. You can still collect phone numbers by adding a **Phone number** field to the sign-up form; they're saved with each sign-up and included in your subscriber export.
[Learn more](/back-in-stock/customize-the-notify-me-widget.md#sign-up-form)
Can I choose which products show the Notify me button?
**Yes.** In the Notify me widget → **Display rules** → **Products**: all sold-out products (default), specific products or variants, collections, or tags.
If a sold-out product is also in a preorder campaign, shoppers see only the **Preorder** button by default. Choose **Show Notify me and preorder buttons together** to let them pick.
[Learn more](/back-in-stock/customize-the-notify-me-widget.md#display-rules)
***
### Emails & setup
How do I add my logo to the emails?
1. Upload your logo in Shopify Admin → **Content** → **Files**, and copy its link.
2. In the app's email editor, paste the link into **Branding** → **Logo URL**.
The link must be a public image address starting with `https://`.
[Learn more](/preorder/preorder-emails.md#edit-email-content)
Can emails come from my own domain?
**Yes**, e.g. ** instead of **. It takes about 10 minutes: choose **Custom domain** in **Settings** → **General settings**, add the two TXT records the app shows at your domain provider, then click **Verify domain**. Until it's verified, emails keep going out from **.
[Step-by-step guide with screenshots](/settings-and-support/set-up-a-custom-sender-email.md)
Can I translate the widget?
**The Preorder widget, yes**, per campaign: campaign **Settings** tab → **Translate** → **Add a language**. Shoppers see the text in the language they browse in; fields you leave empty fall back to your original text.
Only your store's published languages added to your store (other than the default). Add languages in Shopify Admin → **Settings** → **Languages**.
The **Notify me** widget and the emails can't be translated yet: write them in your store's main language. Need another language there? Tell us through **Feature request** on the dashboard.
How do I give your team access to help me?
Send us your store's **collaborator request code** (Shopify Admin → **Settings** → **Users**) in **Live chat**. We send a request; you approve it in Shopify and can remove our access any time.
[Where to find the code](/settings-and-support/give-our-team-access-to-your-store.md)