This will depend on the outcome of the validation.
If you get a clear result that means you can enter the programme of studies that you planned at the level that you planned, then you probably need only to complete the administrative papers, and do some reading to prepare yourself.
If you get a less clear result you may be asked:
to do something extra
to provide more evidence
to do some additional preparation e.g. improve your language skills
to think about another course that might suit you better
If this happens, your advisor will help you to work out what to do.
Note to HE professionals: The content of this answer will depend on what results are possible in your institution – you will need to edit accordingly.