A SAP enhancement was included in the IDoc inbox of the master data ALE for G/L accounts.
You now how the option of changing data received prior to it being posted in the target system.
This is useful if certain fields are fundamentally different in the source (normally the central system) and target systems (generally decentral).
You can use the SAP enhancement with the name GLMAST01 in Customizing or by selecting transaction CMOD.
The SAP enhancement contains the following function exits: