1. Go into Banks, Print checks and Record Bank drafts and then to the Format Tab (Or Banks, Edit account details, Payments tab,  Highlight EFT and click Edit Payment Options)   Highlight EFT and then click on Edit Payment Options
2. Highlight EFT General and edit the Company Entry Description to User Defined.  Key in the first number of the assigned number in the blank. 
3. Then, fill in the company ID with the remaining number.