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Field support per integration

The query parameter fiscalYearStartDate is required and must be a valid date.
If you’re not using the Interactive Authentication Flow, make sure the query parameter companyId is correctly populated.
Supported response fields:
string
string
string
OpenItemEntry[]
DATEV open items carry no line items, so a single entry is derived from the item itself.
Balance
string
number
number

Headers

X-API-KEY
string
required

API key

X-ACCOUNT-KEY
string
required

Account key

Query Parameters

page
number
limit
enum<number>
Available options:
5,
10,
20,
50,
100
companyId
string
environmentName
string
rawData
boolean

Response

200 - application/json
meta
object
data
object[]
Last modified on September 16, 2026