Hello,
I've seen it every where, CIC defines an absence as spending days outside Canada. I haven't seen any other reference for absence.
Few things:
1. CIC requests all passport pages during the eligibility period to verify the entry exit which would match with same entry exit mentioned in physical presence calculator submitted in the application. This is part of eligibility verification.
2. When candidate informs cic saying one needs to attend test, some offices are added absence to the file processing. This absence is nothing to do with absence on physical presence calculator. Some officers use this absence to suspend file processing of the citizenship application(which is nothing but the file will be put on hold till applicant returns to canada).
Absence in physical presence is part of your eligibility. Absence addition on file processing is the period of candidate's unavailability in Canada while file is being processed.
3. For the candidates' (whoever's) file is updated with above absence, will need to send the proof that they are back to the country so that the absence on file is removed.
acs123 received passport page request for #1, not for #2.