# Partners
***
## Definitions
A **Customer** is a partner who receives items from your inventory. \
Customers are linked to `Stock Out` transactions and can be used to track sales orders.
A **Supplier** is a partner who provides items to your inventory. \
Suppliers are linked to `Stock In` transactions and can be used to track purchase orders.
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The `Data Center` is one of the main tabs on BoxHero’s menu bar that allows users to manage data like items, attributes, and partners.
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***
## How to Add Partners
### On Your Computer
1. Navigate to `Data Center` > `Partners`.
2. Click “**Add Partners**” in the top-right corner.
3. Choose between **Supplier** or **Customer**.
4. Enter the partner's details.
5. Click “**Add**.”
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### On Your Phone
You can add partners in the same way on the mobile app.
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### Add Multiple Partners
You can also add multiple partners at once using an Excel file by selecting one of the following under the “**Add Partners**” dropdown:
* Import Excel (Suppliers)
* Import Excel (Customers)
Make sure to download the template for reference. Your Excel file should include these columns:
* Name
* Phone Number
* Email
* Address
* Memo
***
## Partners & Inventory Transactions
### A. Stock Out to Customers
When recording a `Stock Out` transaction, you can select one of the registered customers from your *Partners* list.
### B. Stock In from Suppliers
For a `Stock In` transaction, you can select one of the registered suppliers from your *Partners* list.
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**Note:** If you don’t need to add a partner, you can skip this step and continue.
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***
## Managing Orders for Partners
### A. Sales Orders for Customers
You can create a Sales Order (SO) for a specific customer and keep track of your orders.
1. Go to `Purchases & Sales` > `Sales`.
2. Select **Customer** from the dropdown.
3. The system will auto-fill the customer’s saved address and phone number from your **Partners** list.
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#### Send a Sales Invoice
You can also email the invoice directly to this customer.
* Go to the completed sales order and click the `...` (more) button > `Send Email`.
* The customer’s saved email information will be used automatically.
### B. Purchase Orders for Suppliers
Similarly, you can create a Purchase Order (PO) for a specific supplier through the `Purchases & Sales` menu. The PO can be easily edited, deleted, printed, or saved as a PDF at any time.
***
## Filter by Partner
You can filter by partner to streamline your view across these BoxHero features:
* Transactions
* Purchases
* Sales
* Returns
* Sales Reports
* Summary
Filter Transactions history by specific partners
Filter Summary by specific partners
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To share inventory details with your partners in real time, use the [**Inventory Link**](/docs/other-features/inventory-link.md) feature.
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