How To Fix SDDIC_ADT_DDLA000 - You must define exactly one annotation

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 000

• Message text: You must define exactly one annotation

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLA000 - You must define exactly one annotation ?

  The SAP error message SDDIC_ADT_DDLA000 with the description "You must define exactly one annotation" typically occurs in the context of the ABAP Development Tools (ADT) when working with annotations in your ABAP code, particularly when defining data elements or structures.
  Cause:
  This error arises when you are trying to define an annotation in your ABAP code, but the system expects exactly one annotation to be defined, and either:
  
  No annotations are defined.
  More than one annotation is defined.
  
  Annotations in ABAP are used to provide metadata about the data model, and the system requires a specific structure to interpret these annotations correctly.
  Solution:
  To resolve this error, you should:
  
  Check Your Annotations: Review the code where you are defining the annotations. Ensure that you have defined exactly one annotation as required by the context.
  Remove Extra Annotations: If you have multiple annotations defined, remove the unnecessary ones to comply with the requirement of having exactly one.
  Add Missing Annotations: If you have not defined any annotations, add the required annotation that is expected in that context.
  Consult Documentation: Refer to the SAP documentation or the specific guidelines for the type of annotation you are working with to ensure you are using it correctly.
  
  Related Information:
  
  Annotations in ABAP: Annotations are used to enhance the metadata of your data definitions. They can be used for various purposes, such as defining UI behavior, data model characteristics, etc.
  ABAP Development Tools (ADT): Ensure you are using the latest version of ADT, as updates may include bug fixes or improvements related to annotation handling.
  SAP Community: If you continue to face issues, consider reaching out to the SAP Community or forums where other developers may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error and successfully define your annotations in ABAP.