Facebook Business Manager Access and Issues Guide
How to give admin access in Facebook Business Manager
Go to business.facebook.com
Open Settings.
Under People, click Invite People.
Grant the access needed.
Issue #1: Follow-ups aren't being sent
Question: Why aren't my follow-ups being sent? Why aren't the messages I send from Cekat reaching WhatsApp?
Answer: Your credit card hasn't been added or registered yet. Check whether a payment method has been set up. You can visit the Billing Hub for more information.

Issue #2: WhatsApp account banned
Why accounts get banned:
Legal status, the Business Manager (BM) name, the WhatsApp account name, the display name, unclear products, spam, the website, or a poor BM history.
How to deal with a ban:
Request an unban: go to Request Unban, click the red text in the pop-up and choose Request Review.
If you want to create a new BM:
To delete a WhatsApp Business account, go to WhatsApp Account Settings and choose the account you want to delete.
To delete a Business Manager, go to business.facebook.com, open Settings, choose Business Portfolio Info and click Permanently Delete Business at the top right.
How to change your website correctly: go to Settings, choose the right BM, then open Business Info and edit Business Details.
Issue #3: WhatsApp template rejected
Question: Why was my WhatsApp template rejected?
Answer:
Incorrect variable parameter format
Make sure variable parameters use the right format: {{1}}, {{2}} and so on.
Avoid special characters such as #, $ or %.
Parameters must be in order, with no mistakes in the curly braces.
Breaking WhatsApp's Commerce Policy
Templates are rejected if they break WhatsApp's Commerce Policy.
Avoid offering goods or services the policy doesn't allow.
Make sure descriptions, prices, fees, taxes and legal disclosures comply with the policy.
Breaking WhatsApp's Business Policy
Don't ask for sensitive information such as full payment card numbers or national ID numbers.
Asking for partial information, such as the last four digits of a social security number, is allowed.
Duplicate templates
A template that duplicates an existing one will be rejected.
OTP (one-time password) templates are the exception.