Hi,

I am building a Mobile App (not Salesforce1) and need to know if selecting "Available for Salesforce mobile apps and Lightning Pages" while creating the visualforce page will display the page in my App. Also, are there any standard APIs to achieve the same??

Thanks,
Srishti 

The challenge is:

You've been given a requirement to keep Contact addresses in sync with the Account they belong to. Use Process Builder to create a new process that updates all child Contact addresses when the address of the Account record is updated. This process:Can have any name.
Must be activated.
Must update Contact mailing address fields (Street, City, State, Post Code, Country) when the parent Account shipping address field values are updated.

I start with Accounts when records is created or edited.
Filter criteria where accounts shipping address (street, city, state, zip code) is changed (used "or" logic).

I am stuck on the next step "add action".  I started with action type "Update Records".
On objects, I can't seem to change Accounts to Contacts.  Why?

This challenge seems simple enough but I'm stuck and any help would be appreciated. 

So the Challenge is Create a validation rule to check that a contact is in the zip code of its account. here is the question below:
To complete this challenge, add a validation rule which will block the insertion of a contact if the contact is related to an account and has a mailing postal code (which has the API Name MailingPostalCode) different from the account's shipping postal code (which has the API Name ShippingPostalCode).Name the validation rule 'Contact must be in Account ZIP Code'.
A contact with a MailingPostalCode that has an account and does not match the associated Account ShippingPostalCode should return with a validation error and not be inserted.
The validation rule should ONLY apply to contact records with an associated account. Contact records with no associated parent account (hint: you can use the ISBLANK function for this check) can be added with any MailingPostalCode value

Here is my  work.. Any help would be appreciated.. thanks, 

Rule Name Contact_must_be_in_Account_ZIP_Code Active [Checked]
Error Condition Formula AND( BillingPostalCode = ShippingPostalCode )
Error Message Billing zipcode does not match the Shipping Zipcode Error Location Billing Zip/Postal Code