How To Fix WD291 - Container element & is not multiline -> Appending not allowed


WD291 - Overview

  • Message type: E = Error

  • Message class: WD - Workflow definition

  • Message number: 291

  • Message text: Container element & is not multiline -> Appending not allowed

  • Show details Hide details
  • What causes this issue?

    You are trying to append values to container element &V1&. This is not
    possible, because the container element is not defined as a multi-line
    element.

    System Response

    Appending values is only possible for multi-line elements. For other
    container elements, only the assignment operator can be used.

    How to fix this error?

    Enter a multi-line element as the result element for the assignment or
    use the assignment operator "=".

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message WD291 - Container element & is not multiline -> Appending not allowed ?
    Certainly! Here's a detailed explanation of the SAP error message:
    
    SAP Error Message:
    WD291 Container element & is not multiline -> Appending not allowed
    
    Meaning / 
    Cause: This error occurs in Web Dynpro ABAP when you try to append data to a container element that is not defined as multiline. In Web Dynpro, container elements can be either single-line or multiline. Appending data (e.g., appending rows to an internal table or adding multiple entries) is only allowed if the container element is multiline. If you attempt to append data to a container element that is defined as a single-line element (e.g., a single string or a single structure), the framework raises this error. When does it happen? When you use the method APPEND or try to add multiple entries to a container element that is not designed to hold multiple entries. When the context node or attribute is defined as a single structure or scalar, but your code

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