How To Fix SWF_RLS_001154 - Operator '&1' expects a structure type for expression '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RLS_001 - Condition Evaluation and Rule Evaluation

• Message number: 154

• Message text: Operator '&1' expects a structure type for expression '&2'

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 SWF_RLS_001154 - Operator '&1' expects a structure type for expression '&2' ?

  The SAP error message SWF_RLS_001154 indicates that there is an issue with the data type being used in a workflow or a related process. Specifically, the error states that an operator (like a function or method) is expecting a structure type, but it is receiving a different type of data (like a simple data type or an incompatible structure).
  
  Cause:
  
  
  Data Type Mismatch: The most common cause of this error is that the operator is being provided with a variable or expression that is not of the expected structure type. This can happen if:
  
  A variable is incorrectly defined or initialized.
  The wrong data type is being passed to a function or method.
  There is a mismatch between the expected input type and the actual type being provided.
  
  
  
  Workflow 
  Configuration Issues: If the error occurs in a workflow, it may be due to incorrect configuration of the workflow steps or the data being passed between them.
  
  
  Changes