How To Fix W8158 - Value for container element & is initial, no attributes can be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 158

• Message text: Value for container element & is initial, no attributes can be determined

What causes this issue?

Attributes cannot be determined for the object since the key of the
object is initial.
It is the attribute/element &V1& in the expression &v2&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.