Trailhead Module 3:  Create a formula field that determines the number of days between today and the last activity date for a case's account.
Your support team has asked for improved visibility on account activity level at the time they’re helping with customer issues. Specifically, when they’re looking at a case, they’d like to see an at-a-glance view of the number of days since the case’s related account was last active. Create the formula using these requirements.The formula should be on the Case object.
The formula should be of return type Number.
The formula should be named 'Days Since Last Update' and have a resulting API Name of 'Days_Since_Last_Update__c'.
The formula should return the number of days between the account’s Last Activity Date and today.

I created the following:

I created a new custom formula field with return type number and called Days Since Last Update.
I created this formula: Account.LastActivityDate - TODAY()

I get this error message:

Challenge not yet complete... here's what's wrong: 
The 'Days_Since_Last_Update__c' formula field did not return the correct number of days between an Account’s Last Activity Date and today

Can you please assist what I did wrong?  I'm not sure if my formula is even correct with the challenge.  Please help!

Thank you.

HI ,

I am facing problem in in Visualforce page.

my visualforce page contains in side one more visualforce page in that pages i have two Components

Component 1
component 2

and  i am using sames controller for these two components.

i am diaplaying list of accounts in component 1,

and provided on click functionality foreach record, when i click on particualr record it's opening component 2 with clicked record deatil,

on click of records i am passing reocrd id using param tag.

it's working fine for first time .

second click it's not working just it's rerendering component with empty data..........

if anybody knows kindly suggest me how to solve this problem.