Executive answer
Invoice correctness is not enough; the customer must have every document and approval needed to process payment.
01Documentation
02Process
03Approval
04Commercial
05Financial
06Behavioural
An invoice can be correct and still not be payment-ready
The payer may require a matching PO, GRN, measurement/certification, delivery proof, tax documentation, bank/vendor master data, contract milestone evidence or customer-specific portal requirements.
Readiness dimensions
ContractMilestone and payment terms support the bill.
POReferences, quantities and values align.
ExecutionDelivery/service evidence is complete.
AcceptanceGRN, certificate or user acknowledgement exists.
TaxGST/TDS and legal details are correct.
Supporting packCustomer-specific documents are attached.
SystemVendor master/portal/bank data is valid.
Approval pathThe file is routed to the correct owner.
Why assurance matters
Discovering a missing document after due date converts a preventable process problem into an ageing problem.
GGA concept
A future Documentation Readiness Score can quantify whether invoice packages are truly payment-ready before submission.