Create sales invoice
Create a sales invoice with its lines for a customer. It does not send it.
MCP tool exact_online_write → create_sales_invoice
write Confirm
Creates a sales invoice and its lines in one call, because Exact needs the lines together with the header. It returns the invoice ID, number and total as Exact calculated them. It does not send the invoice; send_sales_invoice does. The endpoint exists only in some Exact packages. By default you confirm each call; you can switch that off for this tool.
Parameters
| Name | Type | Description |
|---|---|---|
| division integer | integer | Division (company) code from list_divisions. Default: the account's current division. |
| customer string required | string | Relation name or account_id from search_relations. |
| invoice_date date required | date | Invoice date. |
| lines array required | array | Objects with description, quantity, unit_price and vat_code. |
| your_ref string | string | Your reference shown on the invoice. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "exact_online_write",
"arguments": {
"operation": "create_sales_invoice",
"arguments": {
"division": 1234567,
"customer": "Northwind Studio",
"invoice_date": "2026-10-14",
"lines": [
{
"description": "Consulting, October",
"quantity": 12,
"unit_price": 95,
"vat_code": "2"
}
]
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"invoice_id": "b21e9d77-5a0c-4f1e-8d13-0c6a77e45002",
"invoice_number": 20260412,
"customer": "Northwind Studio",
"invoice_date": "2026-10-14",
"lines": [
{
"description": "Consulting, October",
"quantity": 12,
"unit_price": 95,
"vat_code": "2",
"amount": 1140
}
],
"amount_excl_vat": 1140,
"currency": "EUR",
"status": "created"
},
"isError": false
}