Handover needs the awkward invoice examples

Keep a representative fixture library

Include ordinary documents and known difficult structures: repeated totals, split tables, credits, poor scans and missing fields. Use synthetic or appropriately reduced examples that preserve the failure mechanism.

For each fixture, record expected fields, source locations and the acceptance or review outcome. Add a short reason explaining what the case protects. A folder of PDFs without expectations is difficult to use as a regression suite.

Group fixtures by supported document class and extraction configuration. This helps maintainers see which changes require broad retesting and which affect one narrow rule.

Transfer the acceptance contract

Document required fields, confidence treatment, arithmetic relationships and duplicate rules. Identify who can approve changes to automatic acceptance and who resolves ambiguous business interpretations.

Keep rule versions with processed records so support can explain why a document passed at the time. A later threshold change should not make historical decisions impossible to reconstruct.

Describe the unsupported path clearly. Reviewers need to know when to request a better document, correct a field or stop processing rather than forcing every file through a familiar template.

Rehearse a correction and an uncertain post

Have the receiving team process a fixture with the wrong payable field. They should use source highlighting, record a correction and verify the final payload without overwriting the original extraction history.

Then simulate a lost response after downstream posting. The team should reconcile the operation before attempting another submission. This tests an operational boundary that clean extraction demonstrations rarely cover.

Give them access to the necessary diagnostic tools with appropriate data restrictions. Broad access to every invoice is not required merely because someone maintains the pipeline.

Maintain the examples as suppliers change

Assign ownership of new-format review and recurring exception analysis. Supplier layouts can change independently of application releases, so quality monitoring needs a route back into the fixture library.

Retire obsolete custom rules deliberately and preserve the rationale for historical behaviour. A complete handover leaves the next team able to explain accepted records, resolve awkward documents and change the pipeline without losing the evidence behind its decisions.