How To Fix VW291 - Single-column view not possible (see long text).

VW291 - Overview

• Message type: E = Error

• Message class: VW - Shipment Processing Output

• Message number: 291

• Message text: Single-column view not possible (see long text).

What causes this issue?

When you enter a stage, you cannot switch to single-column entry. This
may have the following reasons:
There are stages with stage types 2 (load transfer) or 3 (border) for
which you cannot use single-column entry.
There are differences between the destination point of a stage and the
starting point of the next stage. However, single-column entry requires
that the destination point of a stage is the same as the starting point
of the next stage.

System Response

You cannot switch to single-column entry.

How to fix this error?

Use double-column entry, delete the stages which do not have type 1
(shipment) or define the starting point as identical to the destination
point of the previous stage.

Error message extract from SAP system. Copyright SAP SE.

VW291 - Details

• The SAP error message VW291, which states "Single-column view not possible (see long text)," typically occurs in the context of SAP's reporting or data retrieval functionalities, particularly when dealing with queries or reports that are expected to return a single-column result set but instead return multiple columns or an incompatible structure.
  
  Cause:
  
  Multiple Columns Returned: The most common cause of this error is that the query or report is attempting to return multiple columns when a single-column output is expected.
  Incorrect Query Design: The query may be incorrectly designed, leading to a situation where it does not conform to the expected output format.
  Data Structure Issues: There may be issues with the underlying data structure or the way the data is being accessed, such as joins that result in multiple columns being selected.
  View Definition: If you are using a database view, it may not be defined correctly to return a single column.
  
  
  Solution:
  
  Check Query/Report Design: