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A payment complement (REP / complemento de pago) records payment against one or more previously stamped income invoices. CargoWise sends a payment receipt; Lambda decides which lines belong in the stamped complement and whether the parent evidence is ready. Success in the workspace is usually labeled Applied. The underlying fiscal result is still a stamped CFDI.

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PPD vs PUE

Mixed receipts can include both. Lambda excludes PUE allocations from the stamped complement and stamps the PPD lines that remain. Organizations can also enable a REP eligibility window that includes or omits parents by calendar days after CargoWise PostDate.

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Expected path

1

CargoWise sends a payment receipt

The receipt may reference one or more parent invoices and can include embedded parent evidence from CargoWise.
2

Lambda reconciles parents

Lambda confirms parent stamp evidence, unpaid balances, installment sequence, and currency or FX evidence when needed.
3

Eligible lines stamp as a REP

Facturapi issues the payment CFDI. Lambda stores the result and the updated balance chain.
4

Artifacts return to CargoWise

Lambda outbound delivers the payment artifacts separately from income delivery.

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Waiting for parent

If the parent invoice is missing, not stamped yet, or lacks verifiable stamp evidence, the payment shows Waiting for parent. That is a dependency, not a failure. Lambda can continue automatically when the parent evidence arrives. If the parent exists but its values disagree, the payment may move to Failed with a note that names the mismatch.

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Balance chain, in plain language

SAT requires each payment installment to preserve a consistent unpaid balance:
  1. Previous unpaid balance before this payment
  2. Amount paid in this installment
  3. Remaining unpaid balance after this payment
Those three values must agree. When they do not, Lambda pauses with labeled amounts in the note so you can see which document or parent disagrees. Partial payments over time are normal: one income invoice can receive several REPs, each with the next installment number and updated remaining balance.

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Currency and FX

Cross-currency payments need proven exchange-rate evidence from CargoWise. Lambda derives the payment currency fields from that evidence; it does not invent a rate to make the stamp succeed. If FX evidence is missing, see Troubleshooting. CargoWise exchange-difference (EXX) lines are excluded from the stamped complement — see Exchange-difference lines.