Hi DKTRL. The additional information helps a bit but there is still some confusion. Below, I have copied your description and have inserted some questions in relation to each stage. 1st Stage
1) The customer has to select an items in the list. Here we refer to A19 "In total there are about 20 difference items" --- Can the customer choose any of the 20 items? / Yes either 1 within the list
2) If the selected items is a promotion item with 1 free gift, then A25 will add a "Data Validations List" for customer to choose. --- How does the customer know if the item is a promotion item with 1 free gift instead of 2 free gifts? In the order form we have some highlight to the customer to be inform which items is under promotion and with free gift. What is the source of the validation list that would go into cell A25? / Sheet2 A1:A20
3) If the selected items is a promotion item with 2 free gift then A25 and A26 will add "Data Validations List" for customer to choose for 2 free gift item. --- How does the customer know if the item is a promotion item with 2 free gift instead of 1free gifts? / In the order form we have some highlight to the customer to be inform which items is under promotion and with free gift. What is the source of the validation list that would go into cell A26? / A25 = Sheet2 A1:A20 & A26 = Sheet2 B1:B20
2nd Stage
1) If customer has completed 1st stage selection in A19, the order form will than automatically add another selection list in A20 "CLICK HERE FOR SELECT" for customer to select. --- Is "CLICK HERE FOR SELECT" the only choice in the list in A20 or are there other items to choose from? If there are other items, what are they? If there are / Use the same products list as A19
2) If customer has do he selection in A20, then i want A19 to be Locked to prevent further change. cause all the information in this order form will be transfer to a Userform for further detail add. for example shipping cost. etc. than Userform will update data to the sales directory workbook. if the products selection is not in sequence. if customer after select products in A20 and than delete data in A19 than there will be a error. --- If A19 is locked, when and how do you want it unlocked / either a reset button or A20 has to select "CLICK HERE FOR SELECT" to unlock A19
3) If the selected items is a promotion item with 1 free gift then A27 will add a "Data Validations List" for customer to choose. --- How does the customer know if the item is a promotion item with 1 free gift instead of 2 free gifts? / In the order form we have some highlight to the customer to be inform which items is under promotion and with free gift. What is the source of the validation list that would go into cell A27? / A27 = Sheet2 A1:A20 is the same list as A25
4) If the selected items is a promotion item with 2 free gift then A27 and A28 will add "Data Validations List" for customer to choose for 2 free gift item. --- How does the customer know if the item is a promotion item with 1 free gift instead of 2 free gifts? / In the order form we have some highlight to the customer to be inform which items is under promotion and with free gift. What is the source of the validation list that would go into cell A28? / A26 = Sheet2 B1:B20 is the same list as A26
3th Stage (Final Stage)
1) If customer has completed 2nd stage selection in A20, the order form will than automatically add another selection list in A21 "CLICK HERE FOR SELECT" for customer to select. --- Is "CLICK HERE FOR SELECT" the only choice in the list in A21 or are there other items to choose from? If there are other items, what are they? / Use the same products list as A19
2) If customer has do he selection in A21, then i want A20 to be Locked to prevent further change. --- If A20 is locked, when and how do you want it unlocked? / either a reset button or A20 has to select "CLICK HERE FOR SELECT" to unlock A19
3) If the selected items is a promotion item with 1 free gift then A27 will add a "Data Validations List" for customer to choose. --- A27 already has a validation list created in Stage 2. Do you want a new list added or do you want to keep the one that is already there? / sorry is a error mistake. is should be add in A29 ans is the same list as A25 & A27
4) If the selected items is a promotion item with 2 free gift then A27 and A28 will add "Data Validations List" for customer to choose for 2 free gift item. --- A28 already has a validation list created in Stage 2. Do you want a new list added or do you want to keep the one that is already there? / sorry is a error mistake. is should be add in A30 ans is the same list as A26 & A28
Share The Same Data Validation List.
1) A20 & A21 = A19
2) A27 & A29 = A25
3) A28 & A30 = A26 Your situation is rather complicated. As you can see from my questions, detailed information is needed to make this work.