How To Fix FDT_EXPRESSIONS659 - Target step &1 for mapping is not defined in sequence

FDT_EXPRESSIONS659 - Overview

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 659

• Message text: Target step &1 for mapping is not defined in sequence

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS659 - Target step &1 for mapping is not defined in sequence ?

  The SAP error message FDT_EXPRESSIONS659 indicates that there is an issue with the mapping configuration in your SAP Data Services or SAP Process Integration (PI) environment. Specifically, the error states that the target step (denoted as &1) for a mapping is not defined in the sequence. This typically occurs when the mapping logic is trying to reference a target step that has not been properly defined or is missing in the sequence of steps.
  
  Cause:
  
  Missing Target Step: The target step that the mapping is trying to reference does not exist in the defined sequence.
  Incorrect Mapping Configuration: There may be a misconfiguration in the mapping logic where the target step is either misspelled or incorrectly referenced.
  Changes in Mapping: If the mapping was modified (e.g., steps were added, removed, or renamed), it could lead to inconsistencies.
  Versioning Issues: If there are multiple versions of the mapping, the one being executed may not match the