How we can get WhatsAPP Api key

what is the api used to get information about salesforce certification?

Hii

I have a requirement to display salesforce certifications in salesforce by using API

if I type some email id of the user need to display his salesforce certifications.

trigger ContactNamesOnAccount on Contact (after update, after insert) {
Set<id> accIdList = new Set<id>();
 for(Cotact con : Trigger.new){
accIdList.add(con.accountid);
}
List<Account> accUpdateList = new List<Account>();
List<String> names = new List<String>;
for(Account acc : [Select id, Contact_Names__c, (Select LastName From Contacts) From Account Where Id In : accIdList])
{
for(Contact con : acc.contacts){
if(con.LastName != null){
 /* add name to list */
names.add(con.LastName);
}
}
/* update name separating ', ' */
acc.Contact_Names__c = String.join(names, ', '); 
accUpdateList.add(acc);
/* clear list to add new account contact names */
names.clear();
}
update accUpdateList;
}

Hii sir,

i have one more requirement.

I have Account object and related Custom object called Type.

if i updated Type object. update the user fieds with Account phone field.

Thanks.

i have phone field in Account and Contact.

i created multiple contacts with phone...all phone fields need to add in account phone.

Thanks in advance

I have one custom object name something
And i have contact object custom record name and fields should be send to contact current email id  

I have cotact object and custom object by using custom object field send email to the current contact email id by using while loop 

I have one vf dropdown list in that i have contact records 
if i salected contact record only that record shoulb open?

I have a requirement create a custom button on contact using apex and visualForce

The Visual force have to display contact lastname and emailid

if we click on the feedback back button send the information to the current email id

I have 2 pageblocks

firstone should be apper on the screen sencond should be hide mode.

after filling the data in first pageblock hide the first one and  second sholud be apper.

please help me.

How we can get WhatsAPP Api key

i have phone field in Account and Contact.

i created multiple contacts with phone...all phone fields need to add in account phone.

Thanks in advance

I have a requirement create a custom button on contact using apex and visualForce

The Visual force have to display contact lastname and emailid

if we click on the feedback back button send the information to the current email id