Emission Entries
Emission entries are the core building block of your carbon footprint. Every tCO₂e figure in your reports, dashboard and certificates traces back to one or more entries.
Entry lifecycle
Draft → Submitted → Under Review → Approved → Locked
| State | Who can edit |
|---|---|
| Draft | Entry owner and admins |
| Submitted | Admins only |
| Under Review | No edits (reviewer comment only) |
| Approved | Admins — correction entry required |
| Locked | No edits (audit period closed) |
Creating an entry
Go to Carbon Tracking → Emission Entries → New Entry.
Required fields
| Field | Description |
|---|---|
| Category | Scope 1 / 2 / 3 activity category |
| Subcategory | Specific activity and default unit |
| Quantity | Measured activity amount |
| Unit | Defaults from subcategory; adjustable |
| Period | Start and end date of the activity |
Optional fields
| Field | Description |
|---|---|
| Reference | Invoice number, meter read, or purchase order |
| Notes | Free-text supporting context |
| Location | Site, facility or cost centre |
| Attachments | Up to 5 files (PDF, image, CSV) per entry |
| Data source | Manual, API import, or system name |
Emission factors
AlchemOS Positive selects the best-match factor automatically using:
- Subcategory — matches activity type
- Country / grid region — for electricity and heat
- Year — applies vintage-year factor closest to the entry period
The factor metadata (source, vintage, GWP basis) is stored immutably with the entry to satisfy audit requirements.
To override: click Change factor and search the factor library by keyword, source (DEFRA, EPA, IPCC) or custom.
Editing entries
Open an entry and click Edit (only available in Draft or Submitted states).
When you save an edit, a revision record is created. Click History on any entry to see all versions with timestamps and editor identity.
Correction entries
If an entry has been approved and a mistake is found, create a Correction Entry:
- Open the original entry → Actions → Create Correction
- Enter the corrected value and a mandatory reason
- The correction appears as a linked negative+positive entry pair in reports
Bulk actions
From the entry list, select multiple entries (checkbox column) to:
- Change state — submit, approve, or reject in bulk
- Assign location — tag a site to multiple entries
- Delete drafts — permanent; requires confirmation
- Export — download selected entries as CSV or Excel
Filtering and search
The entry list supports:
| Filter | Options |
|---|---|
| Scope | 1, 2, 3, or All |
| State | Draft, Submitted, Approved, Locked |
| Period | Any date range |
| Category | Multi-select from category tree |
| Location | Site / cost centre |
| Data source | Manual / API / Import |
Save a filter combination as a Saved View using the bookmark icon.
Deleting entries
Only Draft entries can be deleted. Approved or Locked entries must be reversed with a correction entry to maintain audit integrity.