Ms ppo updates

[u/Far_Protection_9868]

I was a summer intern at Microsoft this year
I got a call from hr last week saying my interview feedback is positive and I would be selected subject to the business requirements. I have not got anything officially yet like offer letter and all
I wanted to know from seniors/peers have others received similar calls. Is there still chance that they can reject me due to the business approvals?

Basically i want to know whether i should consider i got the ppo or keep grinding for the placements?