MAV Error

Cause

MAV error occurs when the data is created in any release between 4.7 and 4.93. The error may also occur due to the following reasons:

     A voucher having a bank ledger say B1 was created and duplicated by enabling the option Use defaults for bank allocations in F12 Configuration.

     After reconciling the parent voucher, the duplicated voucher was altered by choosing a different bank ledger say B2 and the parent was deleted.

     Now, alter the duplicate voucher or create any voucher with the bank ledger B2

     Tally.ERP 9 throws an MAV error and crashes.

Tally.ERP 9 crashes if the data created in any of 4.7 till 4.93 releases and migrated to 5.0 till 5.3 releases.

Solution

Rewrite of data will solve the issue.