Icelandic Localization

The Centara eMessaging Icelandic Localization extension adds Iceland-specific e-invoicing capabilities to eMessaging, ensuring compliance with Icelandic tax regulations. It handles EINDAGI (final due dates), kennitala (registration numbers), SmartPay payment integration, and VAT number formatting.

Dependencies: Centara Base (v1.19.0+), Centara eMessaging (v1.19.0+), Business Central (v27.3.0+)

Permissions: Assign the RSMICE All permission set alongside standard Centara eMessaging and BC permission sets.

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EINDAGI final due date

Automatically extracts and applies Icelandic final due dates (EINDAGI) from inbound PEPPOL invoices, overriding standard payment term calculations.

When a PEPPOL purchase invoice is received, the extension searches for the EINDAGI date in the XML:

1. Primary path: cac:AdditionalDocumentReference where cbc:DocumentDescription = "EINDAGI"
2. Fallback path: cac:PaymentTerms/cac:SettlementPeriod/cbc:StartDate

The extracted date is applied as the invoice due date.

Configuration: Purchases & Payables Setup → Use EINDAGI instead of Due Date (default: OFF)

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Kennitala auto-fill

Automatically populates the Registration Number field for customers and vendors when their Country/Region Code is set to IS.

When a customer or vendor is assigned Country = IS, the system checks if their No. field contains only digits and hyphens. If valid, it removes hyphens and populates the Registration Number field.

Example: 123456-7890 → 1234567890

Configuration: Centara eMessaging Setup → Automatically Fill Registration Number (default: ON)

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Kennitala validation

Validates that Icelandic customers and vendors have exactly 10-digit registration numbers. Validation occurs at:

• Master data entry — when editing Registration Number on the Customer or Vendor card
• Posting (optional) — during Sales and Purchase order posting

Setting	Location	Default	Purpose
Validate Registration Number	Centara eMessaging Setup	ON	Enforces 10-digit format on entry
Opt out of Reg. No. usage	Sales & Receivables Setup	ON	Disables kennitala validation during posting

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Bulk registration number update

Batch-updates all customers or vendors where the Registration Number field is empty, using the same auto-fill logic as above.

Access: Centara eMessaging Setup → Actions → Update Customer Registration Number / Update Vendor Registration Number

Records where the No. field is not suitable for conversion are skipped.

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VAT number prefix removal

Automatically strips the IS country prefix from VAT Registration Numbers on validation.

Example: IS1234567890 → 1234567890

Applies to both customers and vendors. Always active — no configuration required.

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SmartPay payment reference

Exports SmartPay payment references in outbound PEPPOL invoices with structured payment information.

Reference format (30 characters)

[Bank Account 12 digits][Bank Code 4 digits][Claim Due Date 8 digits][Final Due Date 8 digits]

Requirements

• Company Country/Region Code = IS
• Payment Method mapped to PEPPOL code 9
• 30-character Payment Reference populated on the Sales Invoice

The extension populates PayeeFinancialAccount, FinancialInstitutionBranch, and due dates in the PEPPOL XML output.

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Company registration validation

Before exporting PEPPOL invoices to Icelandic customers, validates that Company Information has a Registration Number set.

Configuration: Sales & Receivables Setup → Wise PEPPOL Validation = TRUE

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Configuration summary

Setting	Location	Default	Purpose
Automatically Fill Registration Number	Centara eMessaging Setup	ON	Auto-populate kennitala from No. field
Validate Registration Number	Centara eMessaging Setup	ON	Enforce 10-digit format on entry
Use EINDAGI instead of Due Date	Purchases & Payables Setup	OFF	Extract EINDAGI from inbound invoices
Opt out of Reg. No. usage	Sales & Receivables Setup	ON	Disable kennitala validation on posting
Wise PEPPOL Validation	Sales & Receivables Setup	-	Validate company registration before PEPPOL export

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Initial setup

1. Install the extension (requires Centara Base + Centara eMessaging)
2. Set Company Information: Country = IS, Registration No. = 10-digit kennitala
3. Configure Centara eMessaging Setup: enable Auto Fill and Validate options
4. Enable Use EINDAGI in Purchases & Payables Setup (if required)
5. Run Update Customer Registration Number and Update Vendor Registration Number for existing data
6. Map SmartPay payment method to PEPPOL code 9 in Payment Method Mapping