Hi All,

I am completely new to macros and programming.
I request your kind help for a small task
I have cell A1, cell B1 . The value of cell C1=(A1+B1)
The value of C1 should be equal to 100 only.
If the user changes value of A1 or B1 which makes the value of C1 not equal to 100 ,then there could be a pop up saying this value should be 100 only and then the valuse of A1 and B1 should be reverted back to the original values.

Kindly help in this
Thanks in advance to all

Regards