Resetting/Update password of SAS OS accounts

[sa_spartan]

Hi Communities,

Will there be any impact if the password of the default OS accounts used on SAS VIYA 3.5 be reset or updated?

example: sas, apache, sasrabbitmq, cas,?

[thesasuser]

During deployment cas and PostgreSQL accounts passwords are needed. 
If they are changed later impact is a possibility.