How To Fix SDDL_PARSER_MSG151 - The annotation NULL is not allowed within arrays

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 151

• Message text: The annotation NULL is not allowed within arrays

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG151 - The annotation NULL is not allowed within arrays ?

  The SAP error message SDDL_PARSER_MSG151 indicates that there is an issue with the use of annotations in an array context within your SAP system. Specifically, the error states that a NULL annotation is not allowed within arrays. This typically occurs in the context of SAP's data modeling or service definition, particularly when working with OData services or similar constructs.
  
  Cause:
  The error is caused by the presence of a NULL value in an array where annotations are expected. In SAP's data definitions, annotations provide metadata about the data model, and having a NULL value in an array of annotations is not permissible. This can happen due to:
  
  Incorrect Data Definition: The data model or service definition may have been incorrectly defined, leading to the inclusion of NULL values in an array.
  Code Generation Issues: If the code or metadata was generated automatically, there may have been a bug or oversight in the generation process.
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