Details that must be accurate.
WHAT MUST BE KEPT CURRENT
Your registered address Directors or proprietors Business activity, if it changed substantially Contact details with authorities and registries
WHY
Notifications go to the recorded address.
An outdated address means you do not receive them.
WHAT THAT CAUSES
Missed deadlines Penalties you did not know about Correspondence you never saw
WHAT TO DO WHEN DETAILS CHANGE
Notify each authority within any required period.
WHAT ELSE TO UPDATE
Your bank Your insurers Your payment gateway Your listings and website
WHAT PEOPLE FORGET
That changing an address requires notifying several parties, not one.
WHAT TO KEEP
A list of everyone who holds your details.
That list is what you work through when something changes.
WHAT TO VERIFY PERIODICALLY
That recorded details are actually correct.
WHAT TO CHECK
That you receive expected correspondence.
Silence may mean it is going elsewhere.