How To Fix TT190 - Parameter &: Only variable & & is permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: TT - Extended Computer Aided Test Tool (eCATT) messages

• Message number: 190

• Message text: Parameter &: Only variable & & is permitted

What causes this issue?

The export parameters returned can only be assigned to 'V'
variables (&V01..&V20) or to export parameters (&E01..&E05).

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?

Only use 'V' variables (&V01..&V20) or export parameters
(&E01..&E05) in the field 'Return in'. To assign these values to
other variables, use the 'SETVAR' function in the function screen.

Error message extract from SAP system. Copyright SAP SE.