In CRM 2013 online - I have a custom field in Contact form "Customer account Number"
whenever user change the Customer Lookup field, we would like to automatically populate the "Customer Account Number" with the value from Account record. Every Account has a account number column and we have entered a unique number.
Generally when a contact is created under a particular account, the custom account number is automatically entered (we mapped the fields). However, when a user changes the customer from the account look up field in Contact Form (i.e. a contact was wrongly associated), then we want a jscript to automatically populate the customer account number column in the Contact Form so that user verifies it's the correct customer that the contact is going tobe associated to before he saves the contact form.
This is for CRM 2013 online and not for CRM 2011 (we had a script that was working on CRM 2011 but doesn't work for CRM 2013).