What to Do When a Required Invoice Field Is Blank

1. Identify the field: what value is required and why. 2. Determine the source: derivable, vendor-supplied, internal, or defaultable. 3. Derive it: calculate or pull from the document or PO where possible. 4. Request it: ask the vendor for vendor-owned values that are missing. 5. Supply it: have AP or the requester provide internal accounting values. 6. Hold if unknown: pause the invoice rather than guess or use a placeholder. 7. Revalidate: confirm the completed field satisfies dependencies and ERP rules.

The first step is identifying where the correct value belongs. Some required fields can be derived, such as a due date calculated from payment terms or a total computed from the line items. These can be completed from the invoice document or the PO without contacting anyone.

Other fields are owned elsewhere. A missing invoice number, tax detail, or remit-to is a vendor-owned value that should be requested from the vendor. A missing GL account, dimension, entity, or posting period is an internal accounting value that AP or the requester supplies. Matching the field to its source is what keeps the completed value accurate.

A blank required field should never be filled with a placeholder value to push the invoice forward. A made-up vendor number, a guessed GL code, or a default tax treatment that was not confirmed creates a record that looks complete but is wrong.

Placeholders are harder to catch than blanks, because a blank field stops the invoice while a wrong value lets it move. If the correct value cannot be determined, the right action is to hold the invoice and request the value, not to invent one.

Required fields are usually required because the ERP needs them to post the transaction. A blank required field commonly causes the export to fail, which is why incomplete invoices stall between AP and the ledger.

Field dependencies add another layer. Completing one field can change which values are valid in another, so a field filled in isolation may still fail validation. Confirming the completed value against its dependencies and the ERP rules is part of resolving the blank.

Stampli validates invoice data against ERP rules as it moves through the workflow, so missing or invalid required fields surface before approval and posting rather than at export. Stampli AI suggests values for ERP-structured fields using ERP logic, while all suggested entries remain subject to human review and approval before posting to the ERP.

Because Stampli mirrors the chart of accounts, entities, dimensions, and field logic from the ERP, field dependencies are enforced at the source. When a parent value is set, the valid options for dependent fields update, which helps prevent the invalid combinations that cause failed exports.

When a value genuinely cannot be determined, the invoice stays in the workflow with its document, comments, and history attached, so the request for the missing information happens in context. Every action is captured in an immutable audit trail with full context.