How To Fix FL373 - All parameters require a reference field or a type

FL373 - Overview

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 373

• Message text: All parameters require a reference field or a type

What causes this issue?

You have defined a parameter without either reference field or type in
an update function module. This is not supported.

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?

You must assign either a reference field, a reference structure or a
type to each parameter.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL373 - All parameters require a reference field or a type ?

  The SAP error message FL373 ("All parameters require a reference field or a type") typically occurs in the context of creating or modifying function modules, methods, or other programming constructs in ABAP (Advanced Business Application Programming). This error indicates that the parameters defined in the function module or method do not have the necessary reference fields or types associated with them.
  
  Cause:
  
  Missing Reference Field: The parameters defined in the function module or method do not have a reference to a data element or structure.
  Incorrect Parameter Definition: The parameters may be defined incorrectly, such as using an unsupported data type or not specifying a reference type.
  Inconsistent Data Types: The data types used for the parameters may not be compatible with the expected types in the context of the function or method.
  
  
  Solution:
  
  
  Check Parameter Definitions: Review the parameter definitions in the function module or method. Ensure that each parameter has a valid reference field