Error when adapting EA_Invoices to project #2
Description
When I go to add invoice line I get the following error.
$form.Line_Number:=$selection_Main.max("Line_Number")+1
Process 3 Generic
Error code 15 This operation is not compatible with the two arguments.
If I continue I then get following error.
$selection_Main.add($entity)
Error code 1637 This entity selection cannot be altered.
And finally on validate I get another error.
Error when executing the method "action_Save" at line number 45
Form.displayedSelection.add(Form.editEntity)
Error code 1637 This entity selection cannot be altered.
Any help would be appreciated.