How To Fix W8109 - Reference types '&1' and '&2' are not compatible (expression '&3')

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 109

• Message text: Reference types '&1' and '&2' are not compatible (expression '&3')

What causes this issue?

The two partners of the value assignment in the binding must have
compatible references.
If an expression or element is created with a
<DS:GLOS.3526B0B8AFAB52B9E10000009B38F974>data type reference</> to an
ABAP Dictionary table field (data type reference "D") and the other
expression or the other element references an object (data type
reference "O"), a value assignment is not possible.
Constants, or expressions, which do not begin with the characters
<(>&<)> or % are regarded as a data type reference to an ABAP
Dictionary field.

How to fix this error?

You should use the F4 input help for the binding definition.
You should only select container elements which F4 input help shows as
<ZH>Data type identical</> or </>data type</><ZH>compatible</>. Such
elements are highlighted with colors.

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

INCLUDE NA_WF_FARBLEGENDE OBJECT DOKU ID TX

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