SAP Message RECPSF204 - Language &1 was not entered as a supported language

Diagnosis
The system automatically determines the document language for eachdocument when the document is output. To prevent a language being usedfor which there are no language-dependent texts or no form translation,you have to specify the supported languages in theBasic Settings for CorrespondenceIMG activity.
In this IMG activity you specified the language &V1& under DetermineLanguage for Document Creation. However, this language is not in thelist of supported languages.

Procedure
In the Basic Settings for CorrespondenceIMG activity, either change the language specified as theDefined Language, or enter &V1& in the list of supportedlanguages.