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- Numeric Variable: A simple value
- Date Variable: A date
- Date Range VariableVariables: A start and a end date
- List of Ledger Accounts: Ledger Accounts imported from the bookkeeping software
- List of Products: Products imported from the business management software
- List of Staff Names: Staff names imported with the invoice lines
- List of "Staff/Groups": Staff groups configured in the setup wizard
- Value from Report: The aggregated Result from a row from a different report
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