How To Fix TL274 - Conversion already performed; cannot be repeated

SAP Error Message - Details

• Message type: E = Error

• Message class: TL - Messages for language transports

• Message number: 274

• Message text: Conversion already performed; cannot be repeated

What causes this issue?

You have tried to convert the supplementation logic from table TLSY2 to
T002C.

System Response

The system has determined that this conversion has already been
performed.

How to fix this error?

You can only perform the conversion once.
Define additional supplementation logics directly using Transaction
SMLT -> Goto -> Classify language.

Error message extract from SAP system. Copyright SAP SE.