COA - Additional Fields in DPO
In this section, you can define additional fields related to the chart of accounts. These custom fields offer more flexibility when capturing purchase order (P.O.), Invoices and Expenses.
Create a New Custom Field
- Open Settings > COA-Additionlas Fields
- Click “Create New Version”.
- You can then add a new field or edit existing fields.

- Enter the desired field name under “Name” (for example, cost center, cost type, or project code)
- Select the appropriate Input Type
- Define where the field should be visible
- Decide whether the field should be mandatory for P.O.s, invoices, or expense reports
- Click “Save”

Data Entry Types
For each custom field, up to five input formats are available. These are included in the export.
COA → Link to an account from the chart of accounts
Value List → Select from a predefined list
Text → Free text field for manual input
Letters → Only letters are allowed
Numbers → Only numbers are allowed
Visibility & Required Fields
- You can individually specify where the field should be visible and/or required:
- Visible: The field appears, for example, in the P.O., invoice or topsheet
- Required: The field must be filled out to complete the validation/creation process
- Simply check the boxes in the "Visible" and "Required" columns according to your requirements
- Don't forget to confirm your entries by clicking "Save"

New Field? Update Required
Whenever a field is created or edited, the system automatically creates a new version. This means that all active P.O.s, invoices, and expense reports must be manually updated in order to apply the new fields.
You can recognize this by the reload next to the account fields. Click the icon and save the document to apply the updated data.

Updating Invoices
Invoices can be updated in two ways:
- in Edit Mode, if the invoice is not yet in the approval process
- directly within the invoice items, if the invoice is already in approval
More information about these functions can be found in the related article.

Updating Expense Reports
Expense reports can also be updated in two ways:
- in Review Mode using the “Update COA” function next to each receipt line
- or in Edit Mode using the pencil icon in the Topsheet

Questions or need help?
Our customer support is always available to help with any questions or setup assistance
Contact us
Email: support@digitalpurchaseorder.com
Support: +1 888 DPO 7254
Support Int'l: +44 20 331 88 338
Berlin Office: +49 (0)30 55 572 5956
Or book a personalized support call
We look forward to hearing from you.
Updated on: 29/05/2026
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