Moss exports all transactions (card transactions, incoming invoices, reimbursements) as credit entries to DATEV (a standard supplier can be used for card transactions).
All payments from Moss (card payments, transfers from Moss Wallet for invoices and reimbursements) are also transferred to DATEV as payment entries, so that the expense is automatically offset on the supplier.
This section explains how payments from Moss are posted and how the Moss Wallet balance is reconciled at month-end.
Why is Moss asking you to fill in accounts before you can export to DATEV Unternehmen Online (DUO)?
To ensure that every credit card transaction is balanced from the collection to settlement at the bank, Moss posts each step to a separate DATEV account.
That is why the export setup asks for the three account numbers below:
Moss field | Role in posting logic | Why DUO requires ist |
Moss account | Reflects the running balance of your Moss account.
When using Moss credit cards (with a credit limit), the most suitable GL accounts are:
| Your Moss statement is reconciled against this account. |
Cash-in-transit account | Catches the bank debit or top‑up that pays off the statement.
Most suitable GL accounts are:
| Ensures that funds that are leaving your bank account are reconciled with your Moss balance. |
Default supplier account | A temporary supplier for every single card expense.
If you do not use "Supplier accounting" option in Moss then a supplier specified in this field (ex.: Moss card) is used when exporting card transactions to Datev. | Datev DUO only accepts card postings with the supplier specified. You need at least a dummy default supplier to enable exports. |
Note: The "Default supplier account" (collective creditor) is required when posting card transactions to DATEV. Even if you do not plan to post any transactions to this supplier, DATEV still requires the account to be specified for API exports.
Entering accounts
Go to "Settings" > "Accounting".
Open the integration tab and fill in the three account numbers under the "Accounting integration" tab.
How the three accounts work together
Expense is made
Expense account > Default supplier account
The expense is recorded and the digital receipt captured.Debiting Moss balance account
Default supplier account > Moss balance account
Supplier account is balanced.Refunding Moss balance account
Moss balance account > Cash-in-transit account
Your Moss balance account is repaid:For customers with the debit account: a top-up of your wallet account.
For customers with a credit line: a repaying credit card invoice.
