Maybe the better question is, "it worked for Richard in the course. What did I do wrong or what did I miss?"

The beauty of having the video is you can watch it more than one time.  You can also download the database that Richard makes and compare it to what you are doing.

Hi Scott

Thanks for your replay i was watched video 4 times before i raise this question and also downloading the file i know i have some confusing with relationship but for practice propose i do 2 tables only to do testing for this relationship but it is given me this result
i guess there is some issue with my extend relationship, but the point is that i make it very sample to trying to understand more for relationship
however, the template for Richard is having serval relationship and serval table linked together and it is confused me more it will be my appreciate if we can have some separate template linked to video steps by steps one more also if you can send me 2 tables only linked together  witn one-to one relationship that will be help full

BR

More ever scott

for more verify and testing proposed i try with Richard template and i delete all data and i keep only the relationship one-to-one and i get same error also

You have to have a Customer Record before you can add an Extended Customer Record. You can't add extended data if the Customer Record does not exist.

Hi Kevin ,

Yes, that is correct Thanks Kevin and Scott now it is working