How To Fix SWF_EXP_001074 - In expression '&1' a table was expected for component '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 074

• Message text: In expression '&1' a table was expected for component '&2'

What causes this issue?

A single row value was determined for component &V2& when evaluating a
(part) expression &V1&.
However, only a multirow value (an internal table) can be processed
here.

System Response

The expression evaluation was canceled.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.