You would like to dunn a business partner only once on one dunning level. Therefore, you did not set the indicator "Always dunn" in the dunning procedure. In spite of that, the receivables a repeatedly dunned on the same dunning level.
You post a dunning charge (and/or interest) on dunning level 1. If the minimum/maximum amount of dunning level 2 is considerably higher than the minimum/maximum amount of dunning level 1, where necessary, the higher dunning level is not reached during the next dunning run due to the minimum/maximum amount. The new dunning group contains the receivables of the first dunning letter and the charges posted during the first dunning letter (and/or interest). These additional receivables are dunned for the first time during the second dunning run and thus the dunning level is therefore increased from 0 to 1. Also if the indicator "Always dunning" is not set, a dunning letter is created because the dunning group contains item whose dunning level increases. However, you do not want to create a new dunning letter with dunning level 1.
As of Release 4.64, there is an indicator for a rule for additional receivables with the meaning "Consideration of the dunning level of the generating dunning letters". Define a rule for additional receivables with this indicator and store this rule for the sub-transactions with which the dunning charges and dunning interest are posted. In the above-mentioned example during the check whether the dunning level is icreased for one item of the dunning group, the dunning program will conclude that this is not the case. Therefore, no second dunning letter is created with dunning level 1.
Note for technical interested customers using an earlier release:
In include LFKMBF01, function module FKK_GET_PREVIOUS_DUNNING_LEVEL is called in form posten_abmischen. This determines the previous dunning level of an item. If the value 0 was determined as a previous dunning level (MAHNS) and if it is a charge or interest item from a previous dunning letter, the dunning level of the dunning letter in which the charge or interest was posted can be read from the table of the old dunning letter headers I_FKKMAKO. The document number is in field MG1BL or MIBEL.