UPDATE A FIELD IN ACCOUNTS USING REST API WITHOUT USING ACCOUNT ID

Hi

    

I want to update a record in Account module with the REST API.

Currently i am following

       http://support.sugarcrm.com/Documentation/Sugar_Developer/Sugar_Developer_Guide_7.6/API/Web_Services/Examples/v10/module_record_PUT/

Here i was able to update the record based on the account id using

CROP.pngShijin Krishna@

In my crm i am having a field account_number in Accounts module which is unique for each Account.

I want to use this to update fields in my Account using REST API instead of the account id.