Crystal Report Enterprise : How to run a Crystal report by prompting only for "main report parameters"

Hi

I am using Crystal Enterprise 14.1.1.1036 Support Pack 01, BI server 4.1 Support pack 6a

Here, I'm Looking to run a Crystal report by prompting only for main report parameters.

So, Scenario I followed is:

1. I have main report and it has 6 unlinked sub reports.
2. I have created a parameter in main report.
3. I have configured the parameter for each sub report using 'Edit Sub report data passing links' to pass the main report parameter value to sub report parameter.

(I have tried with out the 3 rd step still prompting for sub report parameters)

My objective is, "report should prompt only once for parameter and that entered value needs to pass to all the sub reports queries".

Note: But when I ran the report from BI server, it is prompting for all the sub reports parameter.

(the main report parameter and the sub report parameter are same)

Can you guide how to run a report by Prompting only once for parameter value.

Best regards,
M.Shashikiran