| Name | Type | Description | Notes |
|---|---|---|---|
| contactOpeningBalanceTypeId | string | The type of contact opening balance e.g. invoice or credit note | |
| date | \DateTime | The date of the opening balance | |
| contactId | string | The contact the opening balance relates to | |
| reference | string | The reference for the opening balance | |
| totalAmount | float | The total amount of the opening balance | |
| transactionTypeId | string | The ID of the Transaction Type. | [optional] |
| details | string | A description of the opening balance | [optional] |
| netAmount | float | The net amount of the opening balance | [optional] |
| taxRateId | string | The ID of the Tax Rate. | [optional] |
| taxAmount | float | The tax amount of the opening balance | [optional] |
| currencyId | string | The ID of the Currency. | [optional] |
| exchangeRate | float | The exchange rate for the opening balance | [optional] |
| baseCurrencyNetAmount | float | The net amount of the opening balance in base currency | [optional] |
| baseCurrencyTaxAmount | float | The tax amount of the opening balance in base currency | [optional] |
| baseCurrencyTotalAmount | float | The total amount of the opening balance in base currency | [optional] |