Hello,

Before I begin, here are some qualifications:
We have a web service that performs a set operation, which has approximately the following structure:

"Master Form" -   Field 1

                       -   Field 2

                         ...

                       -   Primary Key -    "Form Containing Children Records"

                                                   - Distingquishing Key Field

                                                   - Foreign Key Field

                                                   - Some other field

On our development server, when the web service  is called - updating children Records, It finds the ones that have the Distinguishing Key into the SOAP Envelope and the form both and updates them, but it leaves the existing ones which are not present into the sent XML untouched.

When we imported the same web service on the test env, the web service strangely changed it's behaviour - when it is called - updating children Records, It finds the ones that have the Distinguishing Key into the SOAP Envelope and the form both and updates them, but it deletes the already existing.

The only difference between the servers and their configuration I found is the Submitter mode - changeable on the dev and locked on the test - we have changed them both to be equal, but the web behaviour persists.

The mid tier version on the dev is: Version  7.0.01 Patch 006 200712111854

The mid tier version on the test is: Version  7.0.01 Patch 008 200805251830

Thank You,

Andrey