Input help via RFC

Hi
I am using the NSP Preview system and wish to create an input help for a personnel number. Obviously the search help PREM is not available in the preview system, but I have a RFC connection to a development system that does.
My question, therefore, is what is the best way to code this search help? Do I do it via OVS or code it myself?
Thanks in advance
Ian

There is no built-in RFC Based Value help in Web Dynpro ABAP. The delivered value help is designed to only run off of the local system.
So you have a couple of options.
1. You create a custom search help object in the data dictionary and use the search help exit functionality. In the coding of the search help implementation function module (which you can copy from the template - F4IF_SHLP_EXIT_EXAMPLE), you make your own RFC Calls.
2. Web Dynpro ABAP has a User-Defined value help option. When you assign the Input Help Mode to Freely Programmed to the attribute in the context node, you have the ability to tell it what component usage you want to use for the value help. You can then custom create a reusable sub-component with the appropriate RFC calls within in it.
http://help.sap.com/saphelp_nw2004s/helpdata/en/5d/395e4254139041e10000000a1550b0/frameset.htm
3. Similar to option 2, you might be able to use the OVS (Object Value Selector). Personally I haven't played around with the OVS very much to know how it would rate compaired to the other two options.
http://help.sap.com/saphelp_nw2004s/helpdata/en/30/d7fa41c915da6fe10000000a1550b0/frameset.htm

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The question is answered in CRM 7.0 forum:
Getting error while adding a custom field (with input help) through AET

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Dear all,
I have developed a component, say comp1, in which i have implemented the interface IWD_VALUE_HELP.
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exporting
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Message no. COIS054
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Please read OSS note 1377678.

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Neither notes on trying this solution on a DIALOG landscape would help me, I guess. I've tryed every and each program or snippet found here in SDN, unsucessfully though...
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You can get good information on this topic in your online help files.
The following is taken from the document "General Security Measures
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Protect external users and passwords.
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