ABAP Keyword Documentation → ABAP Glossary
conversion routine
Also known as conversion exit. A conversion routine consists of two
function modules with the naming convention CONVERSION_EXIT_....._INPUT|OUTPUT and can be assigned directly to a
dynpro field or a
domain. When input and output
is produced in these dynpro fields or when the statements
WRITE and WRITE TO are used, the function modules perform the conversions implemented there.