How To Fix SWDP_WB_TOOL245 - Node &1: Collection type &2 is not allowed

SWDP_WB_TOOL245 - Overview

• Message type: E = Error

• Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

• Message number: 245

• Message text: Node &1: Collection type &2 is not allowed

What causes this issue?

Possible values for the collection type are collection, quantity, list,
and tree. These values have the internal codes 01, 02, 03, and 04.
Currently, only the collection type List (03) is allowed.
The node &V1&, however, has a collection type with the internal code
&V2&.

System Response

Error message of the syntax analysis.

How to fix this error?

Assign the node an allowed collection type.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL245 - Node &1: Collection type &2 is not allowed ?

  The SAP error message SWDP_WB_TOOL245, which states "Node &1: Collection type &2 is not allowed," typically occurs in the context of SAP Web Dynpro development. This error indicates that there is an issue with the type of collection being used in a specific node of your Web Dynpro component.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Invalid Collection Type: The collection type specified for a node is not compatible with the expected type. For example, if a node is expected to be a table but is defined as a single entity or vice versa.
  Incorrect Configuration: The configuration of the node in the Web Dynpro component might not align with the data model or the underlying data structure.
  Data Binding Issues: There may be issues with how data is bound to the node, leading to an invalid collection type being referenced.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check