I guess this comes down to "How far do you take 9001?" You could argue then that adverts placed in a magazine by a company holding ISO9001 should be identified and revision controlled?!
I'm not saying they should or shouldn't but I can imagine the debates if a CB tried to write up an NC because said company advertised in News Weekly and didn't state the Rev # at the bottom of the advert ;-)
No! No! No! I am most definitely not saying that, and neither is the Standard.
What ISO 9001 requires is that the organisation controls its documents and records.
How the organisation does that, and to what extent is up to the organisation, its context and the effect of control (or lack of same) on its ability to supply conforming products and services.
That's why the Standard has that bit about the 'controls needed' as in:
A documented procedure shall be established to define the controls needed.
Too many people ignore that part and/or (mis)interpret 4.2.3 to read something like 'everything has to be revision controlled' (for example). Sigh.
Again, it
does not explicitly either say or require that! For engineering drawings, it would be hard to argue that revision control is not required. For ads, often one only does a single ad at a single point and at a single point in time.
Ads? Well, I still contend you need some kind of control over the content, but lesser control. YOU try getting the News Weekly (or whoever) to refund your money because you sent 'em the wrong text, left over from the last time you advertised for an XYZ, 2 years ago, when the job has changed a lot since, and a new job description has been produced in the meantime, but you advertised for the wrong job. Big waste of everyone's time. And avoiding such stuff is the primary purpose of controlling documents suitably. Sigh.
Focus on context, risk and importance. Perhaps your company is a recruiting company, placing ads for clients? In that case, I'd pay close attention to whether they are stuffing up said ads frequently / regularly. If it isn't, and it was simply a one off, then surely any reasonable & competent auditor would be pursuing more worthwhile issues.