How To Fix SADL_GW_V4_MODEL021 - Table line type &1 not supported.

SADL_GW_V4_MODEL021 - Overview

• Message type: E = Error

• Message class: SADL_GW_V4_MODEL - OData Version 4 Enabling: Model Messages

• Message number: 021

• Message text: Table line type &1 not supported.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_V4_MODEL021 - Table line type &1 not supported. ?

  The SAP error message SADL_GW_V4_MODEL021 with the description "Table line type &1 not supported" typically occurs in the context of the SAP Gateway and the SAP ABAP programming model for SAP Fiori applications. This error indicates that the system encountered a table line type that is not supported in the context of the operation being performed, often related to data retrieval or manipulation.
  Causes:
  
  Unsupported Data Type: The table line type specified in the error message is not recognized or supported by the SAP Gateway or the OData service being used.
  Model 
  Configuration Issues: There may be issues with the configuration of the data model in the SAP Gateway service, such as incorrect definitions or mappings.
  Incompatible Data Structures: The data structure being used may not be compatible with the expected input or output formats of the OData service.
  Version Mismatch: There could be a mismatch between the versions of the SAP components being used,