behavior of transfer routine at characteristic level in transformations

When you create a transfer routine, it is valid globally for the characteristic and is included in all the transformation rules that contain the InfoObject. However, the transfer routine is only run in one transformation with a DataSource as a source. The transfer routine is used to correct data before it is updated in the characteristic. 

During data transfer, the logic stored in the individual transformation rule is executed first. Then the transfer routine for the value of the corresponding field is executed for each InfoObject that has a transfer routine. 

In this way, the transfer routine can store InfoObject-dependent coding that only needs to be maintained once, but that is valid for all transformation rules.