General Business Partner: Initial Screen 
Use
Business Partner Search
To find a business partner in the system, specify the search criteria in the corresponding fields, and then choose
ENTER. 
The business partner search corresponds largely to the general
The system outputs a
list of business partners as a result of the search. Choose (double-click) the required business partner if it appears in this hit list.If the business partner does not yet exist in the IS-H database, you can create the business partner.
Business Partner Identification Key Assignment
The identification key of a business partner can be assigned by the system (internal number assignment), or you can assign it yourself (external number assignment).
If you are working with internal number assignment, leave the Business partner field blank and choose
ENTER. The system automatically assigns a unique identification key when you save the data.If you are working with external number assignment, enter the required identification key in the Business partner field and choose
ENTER.Template
You can specify the identification key of an existing business partner in the Business Partner field in the Template group box. The system proposes the data of this reference business partner on the entry screen of the new business partner. Note that if a comment was entered for this reference business partner, it will also be copied into the new business partner.
Function of the Business Partner
On the entry screen for maintaining the general business partner, you can specify which business partner functions you would like to maintain. The general business partner is the default setting here. You can change this setting.
Display or Change Business Partner
If you want to display or change existing business partners, you simply have to specify the identification key of the required business partner. If you do not know the identification key, you can determine it by means of the business partner search.