A specific error code used by software (like FIS or Jack Henry) that banks use to process transactions.

The sender (like an employer or government agency) failed to include the full city/zip information in the electronic file. 🏛️ Social Security & Benefits

Often, these technical codes disappear once the transaction moves from "Pending" to "Posted."

If the payment is rejected, ask the bank's ACH department specifically about "Error 539" or a "City/Zip mismatch."

Many users report seeing this code on their bank statements or within "pending transaction" notifications for:

To give you the most accurate explanation, could you tell me: