An account mix-up can start with an ordinary bookmark: a familiar website opens, but the document upload lands in the wrong organisation. A separate Chrome profile gives each workflow its own browser history, bookmarks and settings. It also gives you a visible place to check before submitting anything.

Make the intended identity obvious

Open the profile menu near the top right of Chrome and choose Add Chrome profile. Give the new profile an unmistakable name and colour. Signing into a Google account is optional for creating the profile; if you do sign in, check the account address carefully before saving browser information to it.

Open the work website from that profile and inspect the website’s own account menu as well. The browser profile and the account signed into an individual website are two things to verify. A blue browser window alone does not establish which customer or organisation receives an upload.

Test the everyday route

Create a bookmark for the work landing page, close the window and reopen the profile through the profile menu. Confirm the bookmark is present and the website shows the expected account. Repeat with a harmless document view before using the arrangement for client work.

Profiles organise activity; they do not lock another person out. Google explains that someone with access to the device can switch to another Chrome profile and see its information. Use separate operating-system accounts when different people need private access.

Keep the previous profile until you have checked any bookmarks and locally saved information you still need. Removing a profile erases its local browser data, so deletion is not a useful first step for a simple account mix-up.

Source: Google Chrome Help.