When ever I want to save my data, I am getting error "You cannot add or change record". I have checked both tables relational, everything seems fine and I don't know where is the problem.
As I can see, you have got a MAIN FORM and a SUB FORM.
It means you have got two tables. What is the relationships ?
What is the field "ecorc", a can't see it not in MainForm, nor in SubForm.
Sorry that's record not 'ecorc'. I have supplierInvoice common in main & subform. Its hidden in subform. But still not saving data from subform. any clue?