When you specify the URL to open, it should look like this:
"https://selfsolve.apple.com/agreementWarrantyDynamic.do?sn=" & SERIALNUMBER & "&locale=en_GB&caller=sp"
Where SERIALNUMBER is the field in which your serial number is stored.
I have tried this. and does not work. Do i need to calculate something?
I have attached a screen shotPreferencesPreferences
You need to remove the backslash characters (\) just before and after the SerialNumber field reference so that it and the ampersands evaluate as part of a calculation instead of being included as quoted text. You will also need to use the name of the table occurrence from which you are accessing the SerialNumber field: YourTableNameHere::SerialNumber.
If you click the specify button, you can open up this expression in the Specify Calculation Dialog where you can add a field reference by double clicking the field in the list of fields to add it with a syntactically correct TableOccurrenceName::FieldName format.
EXCELLENT!!! just noticed the backslashes and the table wasn't specified.
Works like a treat!!!