How To Fix WL102 - Parameter error calling binding editor (& <= &)

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 102

• Message text: Parameter error calling binding editor (& <= &)

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 WL102 - Parameter error calling binding editor (& <= &) ?

  The SAP error message WL102, which states "Parameter error calling binding editor (& <= &)," typically occurs in the context of SAP Web Application Server (WAS) or when working with Web Dynpro applications. This error indicates that there is an issue with the parameters being passed to a binding editor, which is responsible for managing the data bindings between the UI and the underlying data model.
  Causes:
  
  Incorrect Parameter Types: The parameters being passed to the binding editor may not match the expected types. For example, if a string is expected but an integer is provided, this can lead to a parameter error.
  Missing Parameters: Required parameters may be missing from the call to the binding editor.
  
  Configuration Issues: There may be issues in the configuration of the Web Dynpro component or the data model that lead to incorrect bindings.
  Version Mismatch: If there are discrepancies between the versions of the components or libraries being