How To Fix ESH_CDS_VAL021 - Field &1 of view &2 derived from &3 has an invalid join to &4

ESH_CDS_VAL021 - Overview

• Message type: E = Error

• Message class: ESH_CDS_VAL -

• Message number: 021

• Message text: Field &1 of view &2 derived from &3 has an invalid join to &4

Self-Explanatory Message

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ESH_CDS_VAL021 - Details

• The SAP error message ESH_CDS_VAL021 indicates that there is an issue with a join condition in a Core Data Services (CDS) view. Specifically, it states that a field in the specified view has an invalid join to another entity. This error typically arises in the context of SAP HANA or SAP S/4HANA when working with CDS views, which are used for defining semantic data models.
  
  Cause:
  The error can be caused by several factors, including:
  
  
  Incorrect Join Condition: The join condition between the two entities may not be valid. This could be due to mismatched data types, missing keys, or incorrect join logic.
  
  
  Missing Associations: If the join relies on associations that are not properly defined or are missing, this can lead to an invalid join.
  
  
  Data Model Changes: If there have been changes to the underlying data model (e.g., changes in table structures, removal of fields, etc.), it may result in invalid joins.
  
  
  Incompatible Data