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jagadesh raojagadesh rao 

records

what is the diff b/w 15 and 18 digit record ids?
pradeepkumar battapradeepkumar batta
ID fields in the Salesforce.com user interface contain 15-character, base-62, case-sensitive strings. Each of the 15 characters can be a numeric digit (0-9), a lowercase letter (a-z), or an uppercase letter (A-Z). Two unique IDs may only be different by a change in case.

Because there are applications like Access which do not recognize that 50130000000014c is a different ID from 50130000000014C, an 18-digit, case-safe version of the ID is returned by all API calls. The 18 character IDs have been formed by adding a suffix to each ID in the Force.com API. 18-character IDs can be safely compared for uniqueness by case-insensitive applications, and can be used in all API calls when creating, editing, or deleting data.

If you need to convert the 18-character ID to a 15-character version, truncate the last three characters. Salesforce.com recommends that you use the 18-character ID.