How to get a Whatsapp Business API Account?
PREREQUISITES:
Get a brand new phone number.
Set Up Facebook Page. Make sure that you are the admin of your Facebook Business Page.
Verify Business in Facebook Business Manager
Whatsapp Business Solution Provider
Whatsapp API account through BSP:
WABA Onboarding
Click on Continue with Facebook in WATI or select the Whatsapp Channel in Sleekflow.

Click Get Started to link your Facebook page
Select the business category and give a brief description(optional) about your business. 
Onboarding ends here.

Business Verification in Facebook Business Manager:
DOCUMENTS REQUIRED:
Business Bank Statement
Business License
Certificate of Incorporation
Goods and Services Tax Certificate
Permanent Account Number Card (PAN)
Udyog Aadhar
Shop Establishment Certificate
Utility Bill
Steps to get your business verified in Facebook Business Manager:
1. Create a Facebook Business Manager Account:
- If you haven't already, go to business.facebook.com and create an account.
- Follow the prompts to fill in your business details and create your account.
2. Access Business Settings:
- Once you're logged into your Business Manager account, click on the 'Business Settings' option in the top right corner.
3. Navigate to Security Center:
- In the Business Settings menu, find and click on 'Security Center' in the left-hand column.
4. Start Verification Process:
- Within the Security Center, look for the 'Verification' section and click on 'Start Verification'. Provide your business's details, including the legal business name, address, phone number and website.
- If no matching record is found, upload supporting documents, such as a business licence or articles of incorporation, to confirm the details you entered. 5. Select Verification Method:
- Facebook offers different methods for verification. Choose the one that suits your business best.
-A confirmation code will be sent if you choose email, phone, text message or WhatsApp. To confirm via domain verification, follow these steps. 6. Submit Required Documents (if applicable):
- Depending on the verification method you choose, you might need to submit certain documents such as business licenses, utility bills, or tax documents. Ensure these documents meet Facebook's requirements for verification.
7. Wait for Review:
- After submitting your verification request and any necessary documents, wait for Facebook to review your request. This process may take some time, so be patient. 
8. Receive Verification Decision:
- Facebook will notify you of the verification decision via email or within the Business Manager notifications. If approved, your business will be verified. If denied, Facebook will usually provide a reason for the denial.
9. Address Any Issues (if applicable):
- If your verification request is denied, review the reason provided by Facebook and take necessary steps to address any issues. This may involve providing additional information or correcting errors in your submission.
10. Resubmit Verification (if necessary):
- If your initial verification request is denied, you can usually resubmit your request after addressing any issues. Follow the instructions provided by Facebook for resubmission.
11. Maintain Verification Status:
- Once your business is verified, ensure that you continue to comply with Facebook's policies and guidelines to maintain your verification status. This may include updating business information as needed and adhering to community standards.
By following these steps, you should be able to get your business verified in Facebook Business Manager.