請問CITY SCOPE內既ADVANCED DIPLOMA 能在OU DL 相關科目中 申請到學分承認?有無先例?

Depends on what's your subject studied in AD, if you are going to apply for related or familiar major between AD and OU DL, this is easy to transfer credits.
real example for my fd, she had completed HD of business then applied major in accounting at OU FT, credits were fully exempted by OU for 80 crds. then she only need to study one year to get ordinary degree.

you are best to ask admin dept directly because different cases are handled one by one.

It depends on the diploma itself.

Each case is evaluated case-by-case.