# 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**.\
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.
| 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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