So it appeared to me, you wanted to append 'Test_Group_' + random-string to your various TestObject names. If that is not the case, then you need to clarify. For example, perhaps you don’t want Test_Group to be part of the string stored in the variable but instead, use:
String randNum = RandomStringUtils.randomNumeric(5)
WebUI.setText(findTestObject(‘Object Repository/Page_/input_Player Group Name_PlaceHoldertxtPlayerGroupName’), ‘Test_Group_’ + randNum)
Then in your click…
If this is still wrong, you need to send more info about what you’re trying to achieve. Perhaps the following advice will help: