How To Fix DT290 - & cannot be used as include because it contains nested or table types

DT290 - Overview

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 290

• Message text: & cannot be used as include because it contains nested or table types

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT290 - & cannot be used as include because it contains nested or table types ?

  The SAP error message DT290 typically indicates that there is an issue with the data types being used in your ABAP program or function module. Specifically, the error message states that a certain data type cannot be used as an include because it contains nested or table types. This usually occurs when you are trying to include a structure or a data type that has nested structures or internal tables, which are not allowed in certain contexts.
  
  Cause:
  
  Nested Structures: The data type you are trying to include has nested structures. In ABAP, you cannot include a structure that contains another structure or an internal table.
  Internal Tables: If the data type includes an internal table, it cannot be used as an include.
  Incorrect Declaration: The data type might be declared incorrectly or is not compatible with the expected format for includes.
  
  
  Solution:
  
  Flatten the Structure: If possible, modify the structure to remove nested types or