Hi,
I am stuck in Step 2 (Automate Accounts) . I am getting below error message.
Challenge Not yet complete... here's what's wrong:
Please check the configuration of the custom fields on the Account object. The formulas, rollup summaries, etc. did not produce the expected outcome.

I have Created Custom Fields as below
Number of deals, Number_of_deals__c --> Roll-Up Summary (COUNT Opportunity)     
Number of won deals, Number_of_won_deals__c --> Roll-Up Summary (COUNT Opportunity) with filter criteria of Closed Won
Amount of won deals, Amount_of_Won_Deals__c --> Roll-Up Summary (SUM Opportunity) with filter criteria of Closed Won
Last won deal date, Last_won_deal_date__c --> Roll-Up Summary (MAX Opportunity)
Deal win percent, Deal_win_percent__c - Formula --> IF ( Number_of_deals__c > 0, (Number_of_deals__c / Number_of_won_deals__c ), 0))
Call for Service, Call_for_Service__c - Formula --> IF(OR(TODAY() - 730 > Last_won_deal_date__c , TODAY() + 730 < Last_won_deal_date__c ), 'Yes','No')

Also my Validation Rules are configured as :
For Account Name Edit Validation - Created 2 Validation Rules
ISCHANGED( Name ) && ISPICKVAL(Type, "Customer - Channel")
ISCHANGED( Name ) && ISPICKVAL(Type, "Customer - Direct" )

For Billing State/Province Validation Rule is
NOT(
CONTAINS("AL:AK:AZ:AR:CA:CO:CT:DE:DC:FL:GA:HI:ID:" &
"IL:IN:IA:KS:KY:LA:ME:MD:MA:MI:MN:MS:MO:MT:NE:NV:NH:" &
"NJ:NM:NY:NC:ND:OH:OK:OR:PA:RI:SC:SD:TN:TX:UT:VT:VA:" &
"WA:WV:WI:WY", BillingState))

For Billing Country Validation Rule is
BillingCountry <> "US" && BillingCountry <> "USA" && BillingCountry <> "United States" &&  NOT( ISBLANK(BillingCountry ) )

Same Validation rule are set for Shipping State/Province and Shipping Country (with correct field name).

Can anyone help me with this????