Payment notices can be created automatically. You have two options for doing this:
If you want to create payment notices for residual items, partial payments or payments on account, store the correspondence type which is to be used in this step for every company code for which you require this and dependent on the tolerance group.
In addition, you have the option of sending a specific payment notice to the customer for the incoming payment. To do this, you must set the "Acc.to reason code" indicator. This is, however, only valid if there is only one payment reason code. If there are several payment reason codes, for example, "10% deduction due to faulty goods" and "Cash discount deducted when net payment due", then the type of payment notice is determined again using the tolerance group.
In company code 0001, you would always like to create a payment notice without line item display for residual items. To do this, define the correspondence type "SAP02". You do not want, however, to use the general correspondence type "SAP02" if there is just one reason for the payment difference, but to generate a payment notice suitable for just the one reason. To do this, set the "Acc.to reason code" indicator. If there is more than one reason code, then the correspondence type "SAP02" is taken as before.
If you want to send a suitable payment notice according to a reason code, you must first of all define reason codes. In the standard system, there are a number of reason codes delivered with the accompanying correspondence types. For more information on this, please read the chapter "Defining reason codes".
You can make your specification depending on the tolerance group for payment differences. The tolerance groups must also have been entered in the customer master records.