Thank you for the quick response and taking the time to answer something off-topic! Had a quick look at ETag, seems like it's what I need!  Thanks again!

Love your framework! ❤️ Simple, yet powerful!Maybe not the right spot, but in lack of a better place, I will ask you about a problem I have run into lately....I have quite a few timed threads doing automated things like approving or removing approval...

ContactEmployeeAbsEntry doesn't have a set modifier, did you alter the DI API code?BTW just a heads up, if you retrieve a Businesspartner object the ContactEmployeeBlockSendingMarketingContents will be empty, and upon trying to update you need to add...