In your procedure that increments the SalesNum by 1, you need to write that value back to the Data table. That way, when the next person exectes a NEW, they will be incrementing the correct value.

>I am using Sales.SalesNum field as an invoice number, which will increment automatically each time the user append
>a new invoice.
>I place the master SalesNum in Data.SalesNum, so when the user click the new button the textbox "TxtSalesNum"
>will have the value Data.SalesNum + 01.
>
>The problem accured in multiuser environment.
>
>User 1 : giving SalesNum = 1
>
>User 2 : giving Salesnum = 1
>
>User 1 save the invoice and having salesnum = 1 and click the new button. TxtSalesnum.value = 2
>
>User 2 Save the invoice and having salesnum = 2. But when he click the new button, he have TxtSalesnum.value = 2
>not 3.
>
>Thank's
>
>In Save Procedure
>
>Sele Data
>Repl SalesNum with SalesNum + 01
>TableUpdate(.T.)
>Unlock All
>
>
>
>in PNew Procedurte ( When The user click the New Button)
>
>Thisform.TxtSalesNum.Value = Data.SalesNum + 01