I have a piece of software running on SAP 4.5 and I have to port it to SAP 4.0B (The horror !!!). I managed to solve all the problems but one. In version 4.5, author created many domains with conversion exits and some of these conversion exits are missing (especially - timestamp conversions) on 4.0B (e.g. TSTPS). This may sound like noob question but is there any way to add missing conversion exits to 4.0B or write new, custom ones? I haven't done it before and I don't even know how to start.
I will appreciate all the help you can give me.
Thanks in advance