How To Fix SDDIC_ADT_DDLA026 - Annotation value '&1' must not be an array type.

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLA - Messages for Annotation Definition Design Time

• Message number: 026

• Message text: Annotation value '&1' must not be an array type.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLA026 - Annotation value '&1' must not be an array type. ?

  The SAP error message SDDIC_ADT_DDLA026 indicates that there is an issue with an annotation value in your ABAP code or data model. Specifically, the error message states that the annotation value &1 must not be an array type. This typically occurs when you are trying to assign or use an array type where a single value is expected.
  Cause
  The error is usually caused by one of the following scenarios:
  
  Incorrect Annotation Usage: You may be using an annotation that expects a single value, but you are providing an array or a collection instead.
  Data Model Definition: In your data model (e.g., CDS views), you might have defined a field or property that is expected to be a scalar value, but it is being treated as an array.
  Code Logic: There might be a logical error in your ABAP code where you are trying to assign an array to a variable that is not designed to hold an array.
  
  Solution
  To resolve this error, you can take the following steps:
  
  
  Check the Annotation: Review the annotation that is causing the error. Ensure that it is being used correctly and that it is appropriate for the data type you are working with.
  
  
  Review Data Model: If the error is related to a CDS view or data model, check the definitions of the fields. Make sure that fields expected to be scalar values are not defined as arrays or collections.
  
  
  Modify Code Logic: If the error arises from ABAP code, ensure that you are not trying to assign an array to a variable that is not designed to hold an array. If you need to work with multiple values, consider using a loop or a different data structure that can handle arrays.
  
  
  Debugging: Use debugging tools to trace the execution of your code and identify where the array type is being incorrectly assigned or used.
  
  
  Documentation: Refer to the SAP documentation for the specific annotations and data types you are using to ensure compliance with expected formats.
  
  
  Related Information
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  ABAP Development Guidelines: Familiarize yourself with best practices in ABAP development, especially regarding data types and annotations.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.