How To Fix FRMLDLG299 - Primary output is a stream; function cannot be executed

FRMLDLG299 - Overview

• Message type: E = Error

• Message class: FRMLDLG - RMS-FRM: Dialog Messages for Formula

• Message number: 299

• Message text: Primary output is a stream; function cannot be executed

What causes this issue?

You tried to transfer the data calculated for a stream to the property
tree of the primary output. However, the data is only transferred to the
property tree of the primary output if it is specification data.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FRMLDLG299 - Details

• The SAP error message FRMLDLG299 indicates that there is an issue with the primary output of a function module or a form that is expected to return a specific type of data, but instead, it is returning a stream. This typically occurs in the context of SAP Smart Forms or SAPscript when the output format does not match the expected data type.
  
  Cause:
  
  Output Type Mismatch: The function or form is designed to return a specific type of output (like a table or a structure), but it is instead returning a stream (like a binary or text stream).
  Incorrect Configuration: The configuration of the form or function module may not be set up correctly, leading to the output being treated as a stream.
  Data Handling Issues: There may be issues in how the data is being processed or passed to the function, causing it to be interpreted incorrectly.
  
  
  Solution:
  
  Check Output Type: Review the function module