How To Fix RSDS_ACCESS033 - Unknown ABAP type &1; cannot be converted to DD type

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS_ACCESS - Access Messages

• Message number: 033

• Message text: Unknown ABAP type &1; cannot be converted to DD type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS_ACCESS033 - Unknown ABAP type &1; cannot be converted to DD type ?

  The SAP error message RSDS_ACCESS033 indicates that there is an issue with the data type being used in a DataSource or a transformation. Specifically, it states that an "Unknown ABAP type" cannot be converted to a Data Dictionary (DD) type. This typically occurs in the context of data extraction or transformation processes in SAP BW (Business Warehouse) or when working with DataSources.
  
  Cause:
  
  Unsupported Data Type: The ABAP type being used in the DataSource or transformation is not recognized or supported by the Data Dictionary. This can happen if a custom data type is used that does not have a corresponding DD type.
  Changes in Data Model: If there have been recent changes to the underlying data model (e.g., changes in the database table structure or data types), it may lead to this error.
  Inconsistent Metadata: There may be inconsistencies between the metadata definitions in the DataSource and the actual data types in the