SysTestCaseNumSeqModuleDependency doesn't support extension classes
This problem was discovered in 8.1 PU20. Using the attribute SysTestCaseNumSeqModuleDependency to load a number seq module doesn't load number sequences in extension classes. For example if you use SysTestCaseNumSeqModuleDependency(classStr(NumberSeqModuleCustomer)) in a test and you're expecting it to load the number sequence from your XXXNumberSeqModuleCustomer_Extension class where you have used chain of command to add a number sequence for an extended data type it will not be loaded. The following attribute can be used to load the single number sequence and it will work with the _Extension class. SysTestCaseNumSeqTypeDependencyAttribute(extendedTypeStr(XXXXXVoucher), classstr(NumberSeqModuleCustomer))