Error prompt “voucher number [Voucher Number] is already used as of date [Date]”

We have 3 workaround solutions for this

a.       Mark the Number allocation at posting setup in Journal forms

https://technet.microsoft.com/en-us/library/aa556237.aspx

                      https://technet.microsoft.com/en-us/library/aa552517.aspx

                   b.     When you get the error message find the number sequence that is having the issue ,

Organization administration/Common/Number sequences/Number sequences

select that number sequence, click on Manual Cleanup>current

Note : DO NOT CLICK ALL option

                   c. Deleting records in status list

Find the number sequence and click status list .

Delete using Alt+F9 option

Microsoft Disclaimer: Microsoft’s suggestion are recommendatory in nature and the partner/customer should fully test any suggestions provided before applying them in production environment. Microsoft will not take any responsibility for any issue that arises because of this.