MT700 Field 41A Field Contradicts Other Fields

Introduction

Field 41A (Available With … By …) states the bank and the method by which the credit is available. Because it defines where and how honour or negotiation occurs, it must agree with the credit form, the expiry place, and the payment-detail fields. A contradiction between 41A and another field is a structural error that can make the credit unworkable.

Failure Mode Analysis

Failure Mode 1: 41A method conflicts with 42x combination

Field 41A states "By Payment" while the payment fields show 42C/42a drafts, or shows "By Negotiation" while 42P (Deferred Payment Details) is present. Rule C3 permits only certain combinations, so the mismatch is invalid.

Failure Mode 2: 41A bank contradicts 42a drawee

Field 41A names one available-with bank and field 42a (Drawee) names another that does not fit the stated method, leaving unclear who honours or on whom drafts are drawn.

Failure Mode 3: Availability place conflicts with 31D expiry place

Field 41A places availability at one location while field 31D (Date and Place of Expiry) names a different place, undermining the place-for-presentation requirement.

Failure Mode 4: 41A contradicts 40A form

Field 40A states a credit form that is incompatible with the "By …" method in 41A, so the credit's structure is internally inconsistent.

Failure Mode 5: Shipment fields inconsistent with availability

The 41A availability method and the 43P/43T/44x shipment fields describe a logistics path that does not support the stated method, producing an unworkable presentation route.

Deterministic Resolution Architecture

1. Read field 41A as the governing availability (bank + method) before other payment fields.
2. Match the "By …" method to the permitted 42x combination under rule C3.
3. Confirm 41A's available-with bank is consistent with the 42a drawee where drafts apply.
4. Align the 41A location with the 31D expiry place per Article 6.
5. Verify 41A agrees with the 40A credit form.
6. Reconcile 43P/43T/44x shipment fields with the availability route.
7. Check rules C2, C3, and C4 for any prohibited field combination.
8. Amend the message if 41A and any dependent field disagree.

Conclusion

Field 41A defines where and how the credit is available, and it must agree with the 42x payment structure under rules C2/C3, the 31D expiry place, the 40A form, and the shipment fields. A contradiction is fixed by aligning the availability method and location with the dependent fields before issuance.

FAQ

What is field 41A? The SWIFT MT700 "Available With … By …" field stating the bank and method of availability.

Why must 41A match the 42x fields? Rule C3 permits only certain payment-detail combinations; the availability method must fit them.

Can 41A bank differ from 42a drawee? The available-with bank and drawee must be coherent with the stated method; an unexplained mismatch is a defect.

Does 41A relate to expiry place? Yes. The availability location should align with the 31D expiry place.

How does 40A affect 41A? The credit form in 40A must be compatible with the 41A availability method.

What are C2/C3/C4? MT700 network rules governing permitted combinations of payment and date/place fields.

Source Notes

• Context only: SWIFT SR2018 Category 7, MT700 field 41A (Available With … By …, Option A or D); associated fields 43P, 43T, 44A/44B, 44C/44D, 44E/44F, 45A; linkage rules C2, C3, C4.
• Context only: UCP 600 Article 6 (availability and expiry) and Articles 7–8 (issuing/confirming bank undertakings), cited as the relationship basis.
• Source dossier field_contexts for field 41A; SWIFT spec and UCP articles cited by number, not reproduced at length.