As i said before controls and BU do not link to each-other, please review the basic grc documentation (see above) you wont hear the word BU once on the video. Bu are only used for risk, nothing else.
you start using eramba by understanding your problems: risk, compliance and data flows. business units is just metadata that gives context to a problem. the same way an asset behaves.
- a car (asset) is not a problem until a human drives it. then there could be problems (risks)
- a finance team (bu) is not a problem on itself until it start moving money (assets), then there could be problems (risk)
yes, you might need more than one control. that depends entirely how your organisation deals with problems. Account reviews might be done the smae way in the whole planet while CCTV might be done different because technologies implemented on each country are different.
yes, because custom fields are not used to link components (bu, legal, risk, etc) each other, they are used for adding meta data to a section
if this is confusing you might want to consider re-vewing the documentation, attending our online trainings or purchasing consulting hours from our portal.