I need to understand if there is any impact, and if yes what kind, if a project is added to 2 or more portfolios.
Technically portfolio contents (i.e. projects) can belong to many portfolios.
To answer your question, no impact as portfolio data is independent.
However from a planning and management perspective, I would advise keeping them separate where possible.
The contents could otherwise have different priorities in different portfolios.
Of course doesn't mean anything till someone actually takes action, since there's no automatic way to "commit"
Thank you Andrew, makes perfect sense.
One follow-up question, will financials stay intact or be split?
As I said earlier each portfolio data is independent, when you press "sync" it essentially copies the data into the pfm tables.
Thus when you hit sync on portfolio A, only portfolio A is updated. Portfolio B is not affected.
There is nothing wrong with having an item included in more than one portfolio, just be careful that you do not end up double counting that item.
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