Variable Exit - WEB Issue

Hallo everybody,

I am new here, just gaining the experience in BW- BPS area.

I am writing my thesis and a part of it is a small BPS rototype.

I have the following problem:

In web interface there are 3 Variables: Customer, Country and Project, all CHAR, drop-down. Aditionally, Customer and Country are attributes of Project.

Country is of Exit type. Function module read all countries for previously selected cutomer from the MD table of Project.

Then, Project is also of type Exit, and function module read all project for selected customer - country combination.

In does what it is supposed to do, but when I change the selection of e.g. customer, the selection list for country stays unchanged. The same is with project.

Example.

MD Table:

project customer country

1_______1________1

2_______1________1

3_______2________1

4_______2________2

Current selection is cust=1, country =1 and project=1. Now, I change the customer to 2, but the selection list for country is still 1 - and it is supposed to change to new country selection containing 2 as well. In this way I cannot change my selection to other projects. Buffering in off.

The other problem is, that when I select customer 3, which is not in MD table of Project (no Project for selected customer) but it is defined as variable value and in MD Table of customer, I get an internal error. Appropriate error message should appear (is in function code), but it is not.

I hope you have some how to overcome these problems.

Thank you in advance

Marcin