> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/salesforce-lightning/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/salesforce-lightning/salesforce-lightning-b2b-commerce-app-2.0/integrate-the-salesforce-lightning-app/step-17-integrate-the-digital-river-components-into-the-checkout-flow/integrate-the-digital-river-components-into-a-synchronous-checkout-flow/update-the-flow-nodes-in-the-synchronous-checkout-flow/create-custom-variables.md).

# Create custom variables

When working with nodes in a synchronous checkout flow, you need to create custom variables. Use the following steps to create these variables:

1. Click **Manager Tab** and and then click **New Resource**.\
   ![](/files/blYn89Y1OMN1dfnv2UbJ)
2. Enter details for the Resource Types as shown in the table below. Start with API Name.
3. Click Done.
4. Repeat for all entries in the table.<br>

| Resource type                              | Variable               | Variable        | Variable     |
| ------------------------------------------ | ---------------------- | --------------- | ------------ |
| **API Name**                               | Saved\_Tax\_Identifier | skipCurrentPage | TaxCalStatus |
| **Data Type**                              | Text                   | Boolean         | Text         |
| **Availability Outside the Flow - Input**  | Checked                | Checked         | Unchecked    |
| **Availability Outside the Flow - Output** | Checked                | Checked         | Unchecked    |


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