Over the past few years, we've made some improvements to our investment platform. As a result of these improvements, we'll be retiring our old investment platform—which is what you're using today—and asking all our clients to transition to the new one.
We'd make the transition for you, but we can't unfortunately (regulatory reasons). Complete it today!
Does anyone one know what regulation is prohibiting them from doing the transition themselves and what mysterious information I need to furnish.
I did a bogleheads search and found the thread about the general topic but not the rational in regard to the regulatory reason?

Please help.

I didn't find the right solution from the Internet.

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