How To Fix SIW091 - Structure &2: Field description &1 is invalid (see long text)

SIW091 - Overview

• Message type: E = Error

• Message class: SIW - Service Implementation Workbench

• Message number: 091

• Message text: Structure &2: Field description &1 is invalid (see long text)

What causes this issue?

The configuration of the structure object &v2& is inconsistent. Specify
either a predefined type via the fields DATATYPE [LENG, DECIMALS,
DDTEXT] or specify a component type via ROLLNAME.

System Response

The system cannot fill the fields automatically and therefore not
generate the structure object &v2&.

How to fix this error?

To enable the system to fill the fields, correct the configuration of
the structure field description &v2&. To do so, you can either specify
the DATATYPE or the ROLLNAME field as follows:
To specify the DATATYPE field, enter Initial as value for the ROLLNAME
field first. Then specify a predefined type for the DATATYPE field.
Optionally you can enter values for the LENG, DECIMALS, and DDTEXT
fields.
To specify the ROLLNAME, enter Initial as value for the fields DATATYPE,
LENG, DECIMALS and DDTEXT first. Additionally you have the following
possibilities:
- Specify a data dictionary type for the ROLLNAME field. In case you
want to embed a structure you can set FIELDNAME = .INCLUDE.
- Specify a reference type for the ROLLNAME field and specify the
mandatory REFTYPE field.
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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 SIW091 - Structure &2: Field description &1 is invalid (see long text) ?

  The SAP error message SIW091 indicates that there is an issue with a field description in a structure. This error typically arises when the field description specified in the structure is either incorrect, does not exist, or is not valid in the context of the operation being performed.
  
  Cause:
  
  Invalid Field Name: The field name specified in the structure does not exist or is misspelled.
  Field Not Defined: The field may not be defined in the data dictionary or is not part of the structure.
  Incompatible Data Types: The field may have a data type that is incompatible with the expected type in the context of the operation.
  Changes in Data Dictionary: If there have been recent changes to the data dictionary (like renaming or deleting fields), it could lead to this error.
  Transport Issues: If the structure was transported from another system, it may not have been transported correctly.
  
  
  Solution:
  
  Check Field Name: Verify that the field