How To Fix OST_BSDM027 - Data type not supported; element &1 must be either a structure or table

OST_BSDM027 - Overview

• Message type: E = Error

• Message class: OST_BSDM - Web Service BOL Service Data Management

• Message number: 027

• Message text: Data type not supported; element &1 must be either a structure or table

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OST_BSDM027 - Data type not supported; element &1 must be either a structure or table ?

  The SAP error message OST_BSDM027 indicates that there is an issue with the data type being used in a Business Object (BO) or a Business Service Definition (BSD). Specifically, the error states that the element specified (denoted by &1) must be either a structure or a table, but the data type provided does not meet this requirement.
  
  Cause:
  
  Incorrect Data Type: The element in question is defined with a data type that is neither a structure nor a table. This could happen if a primitive data type (like a string, integer, etc.) is mistakenly used where a complex type is expected.
  Modeling Error: There may be a modeling error in the Business Object or Service Definition where the data types were not correctly defined or mapped.
  Incompatibility: The data type being used may not be compatible with the expected input/output of the function or method being called.
  
  
  Solution:
  
  
  Check Data Type Definition: Review the definition of