> For the complete documentation index, see [llms.txt](https://docs.solutioo.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.solutioo.de/vr-payment-gateway/vr-payment-gateway_en_us/configuration/print-rule.md).

# Print rule

QR code and payment link appear only if the print rule allows the document **and** the invoice print mode is not **None**.

#### Invoice print mode

On setup, **Payment info on invoice**:

| Mode                         | Result                               |
| ---------------------------- | ------------------------------------ |
| **None**                     | No QR code, no link on the document. |
| **QR code**                  | QR code only (default).              |
| **Payment link**             | Clickable button only.               |
| **QR code and payment link** | Both.                                |

QR width and height (50–500 pixels, default 150) are editable only when a QR code is intended.

#### The three optional flags

| Setup switch                      | Default | Effect when on                                                     |
| --------------------------------- | ------- | ------------------------------------------------------------------ |
| **Respect responsibility center** | off     | The document RC must be set and have **Print VR Payment QR code**. |
| **Respect payment terms**         | on      | Payment terms must have the QR flag. Empty terms = no QR/link.     |
| **Respect customer flag**         | off     | The customer must have **Allow VR Payment QR code**.               |

{% hint style="info" %}
Most companies do not use responsibility centers. Leave **Respect responsibility center** off. Companies that do use RCs (for example branch control) turn the switch on.
{% endhint %}

#### Prepare master data

* **Payment terms:** field **Print VR Payment QR code**. **Prepare payment terms** sets it on all terms except direct debit.
* **Responsibility centers:** field **Print VR Payment QR code**, action **Allow all responsibility centers**.
* **Customer:** field **Allow VR Payment QR code** (only if the customer switch is on).

#### FactBox on the document

Order, invoice, and posted invoice show whether QR/link is allowed and why not – for example “Payment terms K15 do not allow a QR code.”


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