| Connected account | The connected account to use for the request | Connected Account | Yes | |
| Customer ID | ID of the customer to attach the source to | Text (Short) | Yes | |
| Source type | Type of source (payment instrument) to create | Predefined Choice List | Yes | |
| Source amount | Amount in cents to be collected for this charge, e.g. enter '100' for $1.00 | Number | No | |
| Currency ID | Three-letter ISO currency code, e.g. 'USD' or 'EUR'. It must be a valid currency https://stripe.com/docs/currencies | Text (Short) | No | |
| Metadata 1 key | | Text (Short) | No | |
| Metadata 1 value | | Text (Long) | No | |
| Metadata 2 key | | Text (Short) | No | |
| Metadata 2 value | | Text (Long) | No | |
| Metadata 3 key | | Text (Short) | No | |
| Metadata 3 value | | Text (Long) | No | |
| Statement descriptor | Arbitrary text to display on the customer's statement | Text (Short) | No | |