How To Fix SWF_EXP_001198 - Export parameter '&2' must not be filled (method &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 198

• Message text: Export parameter '&2' must not be filled (method &1)

What causes this issue?

The method &V1& is to be called within an expression. This method does
not have a unique results parameter, however it has one or more
parameters with an export property (<AB>Exporting</> or <AB>Changing
</>). A results parameter for a method that is not unique must always be
explicitly named to avoid ambiguities and to enable upwardly-compatible
enhancements to the method.

System Response

The expression contains syntax errors and must be corrected.

How to fix this error?

The expression is not unique and must be enhanced. Choose the required
results parameter (for example, <AB>
my_export_parameter</>) and enter it in the first position in the
parameter list.
<AB>( _RESULT = 'my_export_parameter' ; ... )</>

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.