Efficient Data Retrieval and UI Binding To Value Help: Using Batch Requests with OData in SAPUI5

I have observed that there is limited content available regarding the process of sending batch requests from SAPUI5 applications to OData services, receiving the response, and subsequently binding the retrieved data to a Combo Box for value help

So in this Blog I would like to explain create a Combo Box using XML, Send a batch request from SAP UI5 and Bind the data to Combo Box for Value Help.

What is a batch Request?

In SAP OData, a batch request is a mechanism for sending multiple HTTP requests as a single batch to the OData service endpoint. Instead of sending individual HTTP requests for each operation, such as read, create, update, or delete, you can group multiple operations into a single batch request.

How to Create a Custom Validation from Fiori App Manage Substitution and Validation Rules

As we are moving to Fiori first yet cloud ready approach for any development, why restrict us to GGB0 or GGB1 for creating validation or substitution rules?

We can utilize the Fiori application - Manage Substitution and Validation Rules to create the rules which will be applied to all the standard processes such as standard interfaces, GUI T-codes and managing standard processes in custom program.

In this blog, we will create a custom-defined function in the validation rule on asset creation or modification done through the Fiori app - ‘Manage Fixed Assets’. The rule will validate against the supplier assigned to the asset master record.