SAP Message R7544 - Characteristic &1 has no conversion routine, ouput length set to &2

Diagnosis Characteristic &V1& does not have a conversion routine or hasconversion routine 'ALPHA'. Additionally, the internal length &V2& wasnot the same as the output length &V3&. In this case the internal length and the output length must agree.Different lengths only make sense for characteristics with conversionroutines not of type 'ALPHA'. System Response Output length was set to &V2&.