**Last updated**: 12 November 2025 | [**Change log**](/products/account-payouts/changelog/)

# Appendix

Details on fields found across our Single Payout API, Batch Payouts API and the Payment Item Search. This page particularly focuses on fields which have a preset range of accepted values.

### Purpose of payment code values

| `purposeOfPayment.code` | Description |
|  --- | --- |
| WPPAYR | Payment of payroll |
| WPPENS | Pension payment |
| WPFAMT | Family maintenance |
| WPUBIL | Payment to common utility provider |
| WPSTDY | Payment of study/tuition costs |
| WPTAXS | Payment of taxes |
| WPGDDS | Purchase sale of goods |
| WPCHAR | Payment for charity reasons |
| WPMDCS | Payment for medical care services |
| WPSAVS | Payment to savings/retirement account |
| WPPROP | Payment of property purchase |
| WPSCVE | Purchase sale of services |
| WPSHAR | Payment of shares |
| WPIVST | Payment of an investment (interest) |
| WPTKAG | Tourism (Invoiced Tickets/Travel Agency costs) |
| WPTOUR | Tourism (other) |
| WPREMT | Remittances |
| WPMOVR | Payment of movable property rental |
| WPSUPP | Supplier payment |
| WPCAPI | Payment of capital contribution |
| WPCHRG | Charges/Fees |
| WPTRAN | Payment for transportation |
| WPSALR | Payment for salaries |
| WPDIVD | Dividends |
| WPLOAN | Loans |
| WPISER | Payment of insurance services |
| WPFSER | Payment for financial services |
| WPCARD | Card payments |
| WPRENT | Rental payments |
| WPEXPE | Payment of expenses |
| WPTRNF | Transfer of funds |
| WPBONS | Bonus/compensation |
| WPOTHR | Other |


## Special characters

| Field Name | Accepted Values |
|  --- | --- |
| List of accepted Special Characters (CallerId) | .- |
| List of accepted Special Characters for AN fields (including space) | +=%!£$^&*()-_<>@{}[]~#:;',.?/¬`\\| |


Note
Please note that only double backslash is allowed.

#### Invalid ExpandableKeyValuePairs

The following keys are not allowed in the `ExpandableKeyValuePairs`:

| Key |
|  --- |
| payoutTransactionType |
| payoutInstrumentId |
| payoutInstrumentReference |
| beneficiaryPartyId |
| remitterPartyId |
| debitorPartyReference |