Receipt Class Mapping Error

Dear all,

Please i need clarification an issue,

please take the scenario as my issue : " Stanbic Current Bank" GL code was wrongly mapped into " Stanbic Cargo"

I have end- dated the wrongly mapped code to 01 mar 2016, and i have mapped the right code to " Stanbic Cargo"

Quetion 1.  Please what happens to all transactions that has gone into the wrong code

Question2 . Can I end- date the wrong code to a much later date say 30 june 2012, if so what happens to all transactions in the system that has gone into the wrong mapping.