# Malaysia v2: Peppol Unify errors

The validation error messages the Malaysia Peppol Unify API v2 (legacy) can return, with the request field each one refers to.

> **Legacy API v2**
>
> This page documents API v2 for Malaysia, which is no longer developed. Start new integrations on the current API: see the [Unify API reference](https://docs.complyance.io/api-reference/unify/) and the [Malaysia guide](https://docs.complyance.io/countries/my/).

These are the validation error messages the [Peppol Unify API](https://docs.complyance.io/legacy/v2/malaysia/peppol-unify/) can return. Each one names the request field to check.

## Validation errors

| Message | Field |
| - | - |
| Document ID is missing! Please provide a valid Document ID. This field cannot be null. | `documentId` |
| Document ULID is missing! Please provide a valid ULID. This field is mandatory and cannot be null. | `documentUlid` |
| Document Issue Date is missing! Please provide the issue date of the document in ‘YYYY-MM-DD’ format. This field is mandatory. | `documentIssueDate` |
| Document Issue Time is missing! Please provide the issue time in ‘HH:MM:SS’ format. This field is mandatory. | `documentIssueTime` |
| Invoice Start Date is missing! Please provide the start date of the invoice in ‘YYYY-MM-DD’ format. | `invoiceStartDate` |
| Invoice End Date is missing! Please provide the end date of the invoice in ‘YYYY-MM-DD’ format. | `invoiceEndDate` |
| Invoice End Date is invalid! The end date must be after the start date of the invoice. Please check and update the dates. | `invoiceEndDate` |
| Invoice Frequency is missing! Please provide the frequency of the invoice. It must match one of the predefined valid codes. | `invoiceFrequency` |
| Supplier Participant ID is missing! Please provide a valid Supplier Participant ID. This field cannot be empty. | `supplierParticipantId` |
| Seller Tax Identification Number (TIN) is missing! Please provide a valid Seller TIN. This field is mandatory. | `sellerTinNumber` |
| Currency is missing! Please provide a valid currency code in ISO 4217 format (e.g., ‘USD’, ‘MYR’). | `currency` |
| Tax Currency does not match Invoice Currency! If the Tax Currency is provided, it must match the Invoice Currency. | `taxAccountingCurrency` |
| Shipping Tax Identification Number (TIN) is missing! If shipping information is provided, the TIN is mandatory. | `shippingTinNumber` |
| Seller TIN exceeds the maximum length! The Seller TIN must not exceed 14 digits. Please check and correct the TIN value. | `sellerTinNumber` |
| Buyer TIN exceeds the maximum length! The Buyer TIN must not exceed 14 digits. Please check and correct the TIN value. | `buyerTinNumber` |
| Shipping Recipient TIN exceeds the maximum length! The Shipping Recipient TIN must not exceed 14 digits. Please check and correct the TIN value. | `shippingRecipientTin` |
| Quantity cannot be zero or negative! Please provide a positive value for the quantity of the line item. | `documentLineItems.quantity` |
| Line Item ID is missing! Each line item must have a unique ID. Please provide a valid Line Item ID. | `documentLineItems.lineItemId` |
| Description exceeds the maximum length! The description of a line item must not exceed 300 characters. Please shorten the description. | `documentLineItems.description` |
| Unit Price is invalid! The unit price must be a positive number and can have up to 2 decimal places. It cannot be zero or negative. | `documentLineItems.unitPrice` |
| Discount Amount is invalid! If a discount is provided, it must be a positive number with up to 2 decimal places. Negative values are not allowed. | `documentLineItems.discountAmount` |
| Tax Percentage is invalid! The tax percentage must be between 0 and 100. Please correct the value. | `documentLineItems.taxPercentage` |
| Total Excluding Tax is invalid! It must equal (unitPrice \* quantity) + charge - discount. Please check and correct the calculation. | `documentLineItems.lineTotalExcludingTax` |
| No line items found! Each document must contain at least one line item. Please add line items to the document. | `documentLineItems` |
| Total Payable Amount is incorrect! It must equal the total amount of the invoice, including all taxes and adjustments. | `totalPayableAmount` |

Source: https://docs.complyance.io/legacy/v2/malaysia/error-messages-peppol/