How To Fix SWF_UTL_000029 - Current value of element '&1' is not an object reference

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_UTL_000 - Messages for I/O - Service Class CL_SWF_IO_SERVICES

• Message number: 029

• Message text: Current value of element '&1' is not an object reference

<AB>&CAUSE&</>
When the system checked the element value, it determined that this
cannot be interpreted as an object reference.

System Response

As the element has been defined as an object, the value cannot be
transferred to the container.

How to fix this error?

Ensure that a valid object reference is transferred as an element
value. You can enter constant object references using the input help.
Alternatively, you can also enter constant object references directly
in the form [object type category.class name.key], for example:
<AB>[BO.FORMABSENC.0000000003]</>,,for a BOR object of type
<AB>FORMABSENC</> with the key <AB>0000000003</>
<AB>[CL.CL_MY_OBJECT.ABCD]</>,,for an object of an ABAP class of type
<AB>CL_MY_OBJECT</> with the key <AB>ABCD</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_UTL_000029 - Current value of element '&1' is not an object reference ?

  The SAP error message SWF_UTL_000029 indicates that there is an issue with the value of a specific element in a workflow. The message states that the current value of the element (denoted by &1) is not an object reference, which means that the workflow is expecting an object reference but is receiving a different type of value (such as a string, number, or null).
  
  Cause:
  
  Incorrect Data Type: The element in question is expected to hold an object reference, but it may be holding a different data type or a null value.
  Workflow Configuration: There may be a misconfiguration in the workflow definition or the binding of the workflow elements.
  Data Flow Issues: The data being passed to the workflow might not be correctly formatted or might not be initialized properly before being used in the workflow.
  Programming Errors: If custom code is involved (e.g., ABAP code), there may be errors in how the object