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How do I select accounting periods and posting periods in Moss for the DATEV export?
How do I select accounting periods and posting periods in Moss for the DATEV export?

This article answers frequently asked questions and offers solutions for selecting the correct accounting periods for exporting data from Moss to DATEV.

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Written by Anna Dziurosz
Updated over 2 weeks ago

These error messages can be resolved using this article:

  • Posting date is after the selected period

  • Document date by period

  • The refund is after the current period

Why can't I select the desired accounting period when exporting to DATEV?

Explanation: DATEV requires specific rules for the selection of accounting periods. Moss validates the data as follows:

  • Posting date for card transactions

  • Billing date for invoices

  • Submission date for refunds

The selected billing period must fulfil the following criteria:

  • Be the same or later than the relevant date

  • Be in the same financial year

If you receive an error message when exporting, please check whether the accounting period fulfils these conditions.


How can I post expenses in the period in which they are actually incurred (if this differs from the posting, invoice or submission date)?

The procedure depends on the module:

  1. Card transactions

    • Moss does not allow you to manually select a specific date for the posting period.

    • Workaround:
      Use the Advance Payments (ARAP) function to allocate costs.

    • Example:

      • If the posting date is in November and the invoice date is in October:

        • Create an advance payment for October (1-31).

        • Export the transaction and the release of the advance payment separately.

      • Alternatively, you can adjust the postings directly in DATEV.

  2. Invoices

    • Moss transmits both the service date and the invoice date to DATEV.

    • If the service date is outside the selected export period:

      • DATEV Accounting suggests moving the entry to the appropriate period.

      • Bestätige die Anpassung einfach mit einem Klick pro Zeile.

  3. Reimbursements

    • Moss books refunds based on the date of submission. It is not possible to change the period within Moss.

    • If adjustments are required, these must be made manually in DATEV Unternehmen Online or Accounting.

    • Why the submission date?

      • The submission date prevents problems with closed posting periods when expenses are submitted late. This ensures a smooth workflow.

If you have any further questions or need assistance, please contact our support team at support@getmoss.com.

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