A letter of credit is a bank's conditional promise to pay the seller when the seller presents documents that match the credit. The promise is about papers, not about the grain in the hold. That single fact explains both why sellers ask for credits and why perfect grain still goes unpaid when a word on an invoice is wrong. Collections, which do not include this kind of promise, are compared with open account at https://goodsandgrain.trade/open-account-versus-collection.

What the bank is actually promising

The issuing bank commits to pay if the documents comply. A confirming bank, if you have one, adds its own commitment, which is why sellers sometimes insist on confirmation by a bank in their own country. Without confirmation, you are still relying on the issuing bank and on the ability to get money out of its country. The credit does not inspect moisture, protein, or weight. If the papers say what the credit asked, the bank pays even when the buyer is unhappy with the grain. If the papers deviate, the bank can refuse even when the grain is excellent.

That is harsh and it is the product. Treat the credit as a checklist with a deadline, not as a compliment from the buyer.

Read it before you load

The time to find a problem is when the credit arrives, before the vessel is fixed. Check the beneficiary's name against your invoice name. Check the goods description. Check the latest shipment date and the expiry, and check where the documents must be presented. A credit that expires in a city your courier cannot reach in time is a trap you can still decline.

Compare every document the credit lists with the document you can actually obtain. If it demands a certificate your inspector does not issue, ask for an amendment. Do not ship on a promise that the buyer will amend later. Later is when you have no leverage. Invoice wording that credits tend to police is discussed at https://goodsandgrain.trade/grain-commercial-invoice-contents.

Tolerances, drafts, and partial shipments

Grain quantities are rarely exact. If the credit allows no tolerance, a weight certificate that differs by a few tons from the credit amount can be a discrepancy. If partial shipments are forbidden, a sensible operational split can also be a discrepancy. Read those clauses with the person who will load the ship, not only with the person who likes the price.

The tenor says when money moves after a complying presentation. Sight and deferred payment are different cash flows. A deferred credit is still a bank promise if it is complied with, and it is still credit risk against that bank until the date arrives.

Discrepancies are ordinary and expensive

Common failures are a description that does not match word for word, a late bill of lading, a missing original, or a weight that falls outside the tolerance. The bank's job is to notice. Your job is to present a set a second person has compared, line by line, with the credit. Build that review into the hours after loading, not into the last afternoon before expiry.

If a discrepancy happens, the bank may ask the buyer to waive it. The buyer may say no, or may say yes in exchange for a discount. You are then back in a commercial negotiation, which is the place the credit was supposed to lift you out of.

It is a payment tool, not a quality tool

Keep quality in the sale contract and in the certificates. Keep payment in the credit. Do not expect one document to do both jobs. And do not treat a credit as free. Fees, the rigidity, and the cost of a discrepancy are part of the price.

This is a plain description, not banking or legal advice. Have the person who will prepare the documents read the credit before you agree to ship.

Frequently asked questions

Does a letter of credit guarantee the buyer likes the grain?

No. It pays against complying documents. Quality disputes stay in the sale contract.

If my documents are perfect, who owes me?

The issuing bank, and a confirming bank if the credit was confirmed. You are not merely waiting on the buyer's goodwill.

Can I fix a wording problem after shipment?

Only if the bank and the buyer agree to amend or to waive. That is a request, not a right. Fix the credit before you load.

Steps

Check names and dates: Match the beneficiary, the goods description, the shipment date, and the expiry to what you can perform.
List every document: Confirm each certificate the credit demands is one your inspector or carrier can actually issue.
Mind quantity clauses: See whether a weight tolerance and partial shipments are allowed before the cargo is split.
Review before expiry: Have a second person compare the set with the credit while you still have time to correct it.