appexchange.salesforce.com/appxListingDetail?listingId=1793261b-54cd-4a3d-8dfc-7192a9fd061c

Choose Install for All Users and acknowledge by checking the checkbox 

click Install Button

Check the check boxes below SSL Encrypted.

Check the access checkbox and click Continue

Once the installation is complete Click Done

1.Create Phone Code Prefix field and Whatsapp Opt out field in Respective custom object (Create Only for Pure Custom Object)

2. If Customer is using phone field with special characters Create a new Formula field like WA Formatted Phone

{ Formula :  SUBSTITUTE (SUBSTITUTE (SUBSTITUTE (SUBSTITUTE (SUBSTITUTE (Phone, ‘(‘, ”), ‘)’, ”), ‘-‘, ”), ‘+’, ”), ‘ ‘, ”) }

Go to Setup. Search Custom Metadata Types  in Quick Find Box and click on that

Click on Manage Records near Country Phone Code Mapping

Click New Button

Label – Enter the Country Name 

Phone Prefix – Phone code prefix of respective country

Click Save

Click on Manage Records near WhatsApp Business URL

Click New button

(If you are placing the component in Custom Object with Contact lookup)

• Label – Custom Object
• WhatsApp Business URL Name  –  Gets pre populated automatically
• Access Token  – Permanent access token generated from Meta
• Encryption Key – ****************
• FB Verify Token – Token used while verifying Webhook
• Phone Id  –  Phone Number Id From Meta
• Value   –  graph.facebook.com
• Version  – v15.0
• WhatsApp Business Id  –  WhatsApp Business Account Id from Meta
• Phone Code  –    +1(For US Phone Numbers)
• Target Object – Choose the Target Object as Custom Object
• Display Number  – From Number in Meta
• Custom Object Name – Enter the Custom Object Name API
• Name Field API – API of Name field of Custom Object / Contact
• Contact Lookup API Name – API of Contact Lookup in Custom Object
• Country Field API Name – MailingCountry
• Phone Field API Name – API Name phone field
• Phone Prefix Field API Name – WA_CustomObject__Phone_Code_Prefix__c
• Default Phone Code – Enter the Default Phone code of your country
• Formatted Phone Field – If Customer is using phone field with special characters then enter the API Name of Created Formatted Phone Field or use Phone field
• OwnerId – Enter the user id to assign the owner for new records (OPTIONAL)

(If you are placing the component in Custom Object without Contact lookup)

• Label – Custom Object
• WhatsApp Business URL Name  –  Gets pre populated automatically
• Access Token  – Permanent access token generated from Meta
• Encryption Key – ****************
• FB Verify Token – Token used while verifying Webhook
• Phone Id  –  Phone Number Id From Meta
• Value   –  graph.facebook.com
• Version  – v15.0
• WhatsApp Business Id  –  WhatsApp Business Account Id from Meta
• Phone Code  –    +1(For US Phone Numbers)
• Target Object – Choose the Target Object as Custom Object
• Display Number  – From Number in Meta
• Custom Object Name – Enter the Custom Object Name API
• Name Field API – API of Name field of Custom Object 
• Contact Lookup API Name – Blank
• Country Field API Name – Country Field API Name
• Phone Field API Name – API Name phone field
• Phone Prefix Field API Name – WA_CustomObject__Phone_Code_Prefix__c
• Default Phone Code – Enter the Default Phone code of your country
• Formatted Phone Field – If Customer is using phone field with special characters then enter the API Name of Created Formatted Phone Field or use Phone field
• OwnerId – Enter the user id to assign the owner for new records (OPTIONAL)

Click Save Button

Go to Contacts tab

Select a Contact Record and give edit page

Drag & drop the wA_CustomObjectWithContact from components to the page

Contact API Name  – Enter Contact Lookup Api name if component is placed in Custom object record page otherwise leave it as blank

Contact Phone Field API Name – Enter the API Name of corresponding phone field

Click Save

Go to respective Custom Object page

Select the record and give edit page

Drag & drop the wA_CusObjScreen from components to the page and click Save

Phone Field – Enter the API Name of Respective Phone Field

Respective Custom Object → Buttons, Links, Actions → New Button or Link

Label – Button Label

Display Type – List button

Content Source  – URL

URL – /flow/WA_CustomObject/Send_Bulk_Messages?retURL=<URL OF Custom Object List View>

Click Save

Respective Custom Object → List View Button Layout

Edit the list view and add the Recently created button

Click Save

Go to respective Custom Object List View

Select the records and Click Send Whatsapp Messages button

Choose the WA Template and Click Send Messages button

To Get Notification for inbound messages. Goto setup → Notification Delivery Settings

Click the down arrow and choose Edit button

Choose Salesforce for iOS and Salesforce for Android Checkbox and Click Save