How To Fix FC287 - Instruction key & & & already exists

FC287 - Overview

• Message type: E = Error

• Message class: FC - FI configuration error messages

• Message number: 287

• Message text: Instruction key & & & already exists

What causes this issue?

Instruction key &V3& has already been created for payment method &V2&
in country &V1&.

How to fix this error?

Check your entries. If it is not necessary to convert the key, delete
the entry.

Error message extract from SAP system. Copyright SAP SE.

FC287 - Details

• The SAP error message FC287, which states "Instruction key & & & already exists," typically occurs in the context of financial transactions, particularly when dealing with payment instructions or similar financial documents. This error indicates that there is an attempt to create or modify an instruction key (such as a payment instruction) that already exists in the system.
  
  Cause:
  
  
  Duplicate Entry: The most common cause of this error is that the instruction key you are trying to create or modify already exists in the database. This could happen if:
  
  You are trying to create a new payment instruction with an ID that has already been used.
  There is a system or user error that leads to the same instruction key being processed multiple times.
  
  
  
  Data Migration Issues: If data has been migrated from another system, there may be duplicate keys that were not properly handled during the migration process.
  
  
  Concurrency Issues: If multiple users or processes