How to use the catalog in our own Web Dynpro program?

Hi Expert,
How to access MDM catalog and bring the product data back to a our own Web Dynpro program?

Hi Masa,
The Catalog Search UI of SRM that is referred to as UI as aforementioned is a page which is capable of the selection of catalog items is linked from the shopping cart creation.
Our biz requirement content two scenarioes to processing the purchase requirement.
A. Create shopping cart via the catalog (PR) --> SRM PO Process --> SUS(PO and Invoice)
This is the standard SRM purchase scenario and we have already implemented that.
B. Create a requirement document via the catalog (This document is same with the SC but very simple, and we create this function by the own web dynpro program) --> transfer the requirement document to other purchasing system(none SAP) in our intranet.
So the key problems we faced are below:
1. How to connect to the catalog search UI from our own web dynpro program.
( If we connect the catalog via the MDM ABAP API, that will make the catalog serach UI could not be used;
Also it has been failed to simulate the function of SC's connection to the catalog;
So we decide to link the catalog serach UI via the URL, the linkage is "http://<J2EEserver:J2EEport>/SRM-MDM/SRM_MDM?sap-locale=EN&HOOK_URL=&mask=&namedSearch=General&username=&password=&catalog=<Repository Name>&server=&datalanguage=EN". )
2. How to transfer the catalog item data to our own web dynpro program.
If we link the catalog search UI by URL, we can not find any good method to transfer the catalog item data to our own program.

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Page 147
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