Understanding MT 700 Fields 39A and 39B – Amount Tolerance Explained Intro In SWIFT MT 700, Fields 39A and 39B are often referred to as “tolerance Fields”. Although both relate to the credit amount, they serve different purposes and lead to very different practical outcomes. This Q&A explains the distinction and when each Field is typically used. Question Dear Sir, Good day! I have some doubts on Tolerance Field39A and 39B. … Read More