Display data from another module in record view

What is it that you are trying to accomplish? You could use the link view dashlets for this. The only thing you need to be aware of is that you check the 'related' checkbox and disable the filter.

The account_id and account_name are fetched thanks to populate_list on field opportunities at Accounts module and field account_name at Opportunities module, so you just need to create an extended vardefs on both module which copies that custom field from Account to Opportunity.

Regards

Yes, List View Dashlet was an option, but the client wants the information right in the record view. 

Can you tell me if it is possible with populate_list or related field array in the record.php?

Or is there any other better solution?, can i fetch extra fields of accounts via the relationship?

For what it's worth, I would go with Jeroen Somhorst's suggestion and use the dashlet.
By using the dashlet view you give them all the information they want right on the page without compromising your record view. You can even create a custom dashlet if you want to show only the necessary information for that particular requirement.

I have issues with my users wanting everything on every page, but giving in to that means higher maintenance, much more testing when upgrades happen, and a slower system not to mention that it can lead to problems down the road as changes in one module now closely affect what you are displaying in the other.

It is my opinion that Sugar's flexibility is a dangerous two-edged sword, and sometimes just because you can, doesn't mean you should.... as application administrators and developers it is sometimes our job to just say "no".

Having said all that, if you are adamant that you have to show all that information on the record, you could use a non-db read-only text field just to display it without saving the additional data to the opportunity record.

OOTB; use the Record Dashlet in Sugar 11. This will display the entire account record in the Intelligence Pane. No programming. No custom fields. You can set up the fields to display in the Record Dashlet inside of Studio

Amber Sharma said:

I have tried related field formula, it works for the first time load but on edit and save of the record, the data fetched from the accounts gets wiped off. 

That should not happen, put a call into SUgar support to fix the issue.