The disadvantage of the tool stems from the fact that it does not allow users to make database-level modifications. In Siebel CRM, you have complete control over your database, you can do any database-level modifications, and you can create a custom data model within your database, but such functionalities are not available in Pega CRM. The UI and UI level modifications that are available in Siebel CRM with JavaScript within the jQuery framework, which is basically an open UI framework built by Siebel on top of a UI layer, are available in the tool. The level of UI modifications allowed by Siebel CRM is not available in Pega CRM. The aforementioned areas can be considered for improvement in the tool. I would like to see more out-of-the-box adaptors in Pega CRM since it is an area where the tool has certain shortcomings.
