Cannot get datasource loop to run twice in a testcase

Hi, i was wondering if you could help me solve a problem that i am having. I am trying to create a test which will write information to an excel spreadsheet, and then call the results in another datasource loop to finalize my test. I am doing the following:

1) create a datasource to read a customer name and number from an excel file that is pre-populated with information
2) run the saoptest to read information and write to Oracle database
3) take the sucessfull results from test 2, and write to a success log file in excel
4) take the results from the success excel log file in step 3 and use those as a datasource
5)run soaptest to read success excel information to send a verifiaction to databseof the test results


Currently my second datasource seams to fail even though the information is correctly being written to the success log, i am getting an error that says " -> Failed due to missing data". Am i missing a step in order to make my script run correctly?