"Just send me your password" is the most common mistake in page management. If a client shares a password, they cannot tell what you did, they cannot remove you without changing it, two step codes go to their phone and you get blamed if anything goes wrong. Every major platform has a better way: the owner gives you a role on the page from their own account.
How Meta does it
On Facebook, a Page can give people different levels of access. The names shift as Meta updates its tools (you may see Business Suite, business portfolio or the older Business Manager), and levels differ when a Page sits in a business portfolio, so learn the ideas rather than the exact buttons:
- Facebook access with full control. Can manage everything, including settings, and can give or remove access for other people, even others with full control. Keep this for the owner and perhaps one trusted senior person.
- Facebook access with partial control. Can create, manage and delete content, reply to messages and comments as the Page, run ads, remove or ban people and see insights, but cannot change settings or manage who has access. This is usually right for a page manager.
- Task access. Can work on specific tasks through business tools such as Meta Business Suite or Ads Manager, but cannot switch into the Page on Facebook itself.
A Page must always keep at least one person with full control. If nobody has it, Meta deactivates the Page and schedules it for deletion. That person should be the owner, not you.