We would like to clarify if there is any SIS validation on the source codes assigned on a rejection invoice.  The reason I’m asking is we were billed a source code 55 and we rejected the billing through IS Web in July period 4, however, the user inadvertently entered source 55 instead of source 56.  My question is does SIS validate that the source code entered is incorrect considering that in this case the billing being rejected was a source code 55 and therefore the subsequent billing should be a source code 56 --- a third rejection?

Harry - US