Hi Raman,
1. I created DataSource on ERP system in SBIW (RSO2) t-code. And then replicated it in BW system.
2. I have 2 fields - key and text. One thing is different. Key on ERP is NUMC(8). Key on BW (characteristic) is CHAR(40). Maybe it is a problem?
3. I have not tested data at ECC side RSA3, I don`t know how to do it.
I have enable text option attribute in characteristic and selected text lenght.
The problem is that there is keys but no texts after loading delta InfoPackage which is need to DTP.