Short Answer
To connect a LinkedIn account in BrandJet for outreach, go to brandjet.ai/accounts, click Add Account, choose LinkedIn, and press Connect Account. BrandJet gives you two connection methods: credentials or cookies. Try credentials first if your account can log in normally. Use cookies if credentials get blocked by two-factor authentication or LinkedIn security checks.
For the cookie method, you copy the li_at cookie value from linkedin.com and paste it into BrandJet. If you use Sales Navigator, you can also copy li_a. This gives BrandJet an active session instead of asking it to complete the login flow from scratch.
I would keep this practical: use credentials when they work, use cookies when the login flow gets blocked, and make sure you copy the cookie values quickly while the browser session is still fresh.
Before You Start
You should be logged into the LinkedIn account on your desktop browser before using the cookie method. You also need permission to use that account for outreach. If the account has two-factor authentication, credentials may fail more often, so cookies are usually the cleaner path.
| Connection Method | Use It When |
|---|---|
| Credentials | The LinkedIn account can log in normally without extra blocks. |
| Cookies | Credentials fail because of two-factor authentication, checkpointing, or security prompts. |
| li_at Cookie | Required for the LinkedIn browser session. |
| li_a Cookie | Useful when the account uses Sales Navigator. |
Open The LinkedIn Connector In BrandJet
Go to brandjet.ai/accounts, click Add Account, and choose LinkedIn under Social Channels. Then click Connect Account.
Connect LinkedIn With Credentials
The first method is credentials. Enter the LinkedIn email and password, then press login. This is the simplest option when LinkedIn accepts the login without extra checks.
Credentials can fail if LinkedIn asks for two-factor authentication, security verification, or a checkpoint. That does not always mean the account is wrong. It often means LinkedIn does not like the automated login path. When that happens, switch to cookies instead of repeatedly trying the same password.
Connect LinkedIn With Cookies
In BrandJet, switch the connector to cookie mode. You will paste the LinkedIn session cookies into the fields BrandJet provides.
Open LinkedIn on your PC in the same browser where you are logged in. Right-click on the page and choose Inspect. This opens the browser developer tools. You are not editing anything here. You are only reading the cookie values that your logged-in browser already has.
In the developer tools sidebar, click the double arrow if needed and open Application. Under Cookies, choose linkedin.com. Then find the cookie names li_at and, if you have Sales Navigator, li_a.
Copy the Value field for each cookie and paste it into BrandJet. Do not copy the cookie name. Do not copy the full row. BrandJet needs the value only.
What To Do If The Session Expires
If BrandJet says the session expired, do not panic. Repeat the cookie copy process and move a bit faster. Cookie values can change, expire, or become invalid if the browser session refreshes. The safest flow is to open LinkedIn, copy the cookie, paste it into BrandJet, and submit without waiting around.
Also make sure you are copying cookies from linkedin.com while you are actually logged into the right account. If you have multiple LinkedIn accounts in different browser profiles, use the profile that contains the outreach account.
What I Would Check Before Using It In Outreach
After the LinkedIn account connects, confirm it appears on the BrandJet Accounts page and is assigned to the right groups or campaigns. I would also check the account limits and warmup status before sending at scale. The connection is only one part of outreach. The account still needs to be used carefully so you do not trigger unnecessary LinkedIn security checks.
Credentials Or Cookies: Which LinkedIn Method Should You Use
Use credentials when the LinkedIn login is simple. That means the account accepts an email and password without extra checks, device challenges, or two-factor interruptions. It is the easiest method and takes the least time.
Use cookies when LinkedIn makes the credential flow difficult. Cookies work because your browser has already passed the login challenge. BrandJet is not trying to solve two-factor authentication during the connector flow. It is using the active LinkedIn session you already have in your browser.
The cookie method is more sensitive to timing. If you copy an old value, copy from the wrong profile, or wait too long before submitting, the session can expire. I would keep the BrandJet cookie fields open, copy li_at from LinkedIn, paste it immediately, then submit. If you use Sales Navigator, copy li_a in the same pass.
What To Check After LinkedIn Connects
After the connection succeeds, check the account name and connected state in BrandJet. Then confirm the account has the right group assignment and seat allocation. For LinkedIn outreach, this matters because you may have multiple team accounts, and the wrong connected profile can create confusion quickly.
I would also avoid reconnecting repeatedly unless you need to. Frequent session changes can trigger platform security checks. Connect it cleanly, test lightly, and then use the account within sensible outreach limits.
Handle LinkedIn Cookies Carefully
The cookie method works because the cookie value represents an active LinkedIn browser session. Treat that value like a password while you are copying it. Do not paste it into notes, chat threads, or shared documents unless your team has a secure process for secrets.
After you copy li_at and li_a if needed, paste them directly into BrandJet and log in. If the session expires, repeat the copy step from a fresh LinkedIn browser session. I would not keep retrying an old cookie value, because it is usually faster to copy the current one again.
Also make sure you are copying cookies from linkedin.com while logged into the correct LinkedIn account. If your browser is using the wrong profile, the cookie method will connect that wrong session just as quickly as the right one.
When Credentials Are Enough
Use the credential method first when the account can log in normally and does not block automated login because of two-factor checks, unusual security prompts, or device verification. It is simpler because you only enter the email and password in the BrandJet connector.
Switch to cookies when the credential login keeps failing even though the account works in the browser. That usually means LinkedIn is asking for a session condition that the credential form cannot fully satisfy.