invoice_processing · services · workflow

That Index Consulting automates financial document extraction and enhancement with Nanonets

That Index Consulting needed to onboard one of the UK's largest charities requiring indexing of hundreds of thousands of financial documents from global suppliers. Traditional OCR lacked the flexibility for data enhancement rules and the sheer volume made manual processing unfeasible—verification would have taken approximately three minutes per document.

How it works
Common implementation structure
How this type of workflow is generally built, generalized across documented cases — not tied to any one vendor's stack. Click any stage to read what happens there. Specific products that implement these stages appear in “Tools commonly seen” below.
Stage 1 · Document import via API
All documents seamlessly entered the platform through an API call using the import block.
Tools used
Nanonets
Outcome

Nanonets delivered over 90% document extraction accuracy with real-time export to the MSSQL database, and That Index can now process documents from different sources and formats while incorporating new data enhancement rules with minimal training.

What failed first

Traditional OCR required extensive training for new document formats, could not apply data-action rules, and was prone to misinterpreting UK PO codes—causing errors that would have required manual review of tens of thousands of invoices.

Results
Volumeover 90%
Cost replacedapproximately three minutes per document
Source

https://nanonets.com/customer-success-story/that-index-automates-data-extraction-and-enhancement

How we source this →

Grounding & classification
Source type: vendor customer story
22 fields verified against source quotes.
data extractionidpocrinvoicepurchase orderfailure mode describedmetric backednamed customerproduction runtime claimedtools describedworkflow describedprofessional servicesaccuracy improvementtime savedvendor customer storydata entry opsinvoice processingdocument to recordextract classify route