How To Fix TPDA193 - You cannot switch to the classic debugger here

SAP Error Message - Details

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 193

• Message text: You cannot switch to the classic debugger here

What causes this issue?

For technical reasons you cannot switch to the classical ABAP Debugger
here. The classical Debugger cannot be activated in conversion exits or
field exits, for example.

How to fix this error?

As soon as you have left the conversion exit, for example, you can
switch to the classical Debugger again.

Error message extract from SAP system. Copyright SAP SE.