Level or number of communications with customers regarding trade receivables.
That Dunning is a methodical process of contacting customers to find unpaid bills to collect. It usually starts with a reminder in the first stage and progresses to dunning letters and threats as invoices become more overdue. Can be controlled from SAP Business One.

An open item reaches a certain dunning level if the number of days it is overdue is greater than or equal to the number of days of the current dunning level, but less than the number of days of the next higher dunning level. When the dunning letters are printed, the dunning level of the item is saved.
As a rule, the appropriate dunning text and, if necessary, a special dunning form are selected with each dunning level. Alternatively, it is also possible to specify that dunning should be carried out per dunning level. In this case, the dunning text or the dunning form is not determined by the highest dunning level of the account, but a separate dunning letter is created for each dunning level.
The dunning levels can either be raised or lowered automatically by the dunning programme or manually by you:
If you change the dunning level using the document or line item change or account change functions, you can increase or decrease the level as required.
If you change the dunning level in the dunning proposal, you can reduce it as much as you like, but only increase it by one level. A further increase is always only possible in comparison to the last dunning level. This means that if the dunning programme has already increased the dunning level in the previous dunning run, you cannot enter a higher dunning level. However, it makes sense to increase the dunning level manually if, among other things, you want to unblock a blocked item in the dunning proposal.
The dunning programme can only set the dunning level of an item one level higher than the last dunning level. Even after an item has been unblocked, the dunning level can only be increased by one level.
To ensure that low amounts do not trigger high dunning levels, you can define minimum amounts and minimum percentage rates for each dunning level. The dunning level is only triggered if the amount in question exceeds the minimum amount and the minimum percentage rate in relation to all other dunning levels. open items reached. If these conditions are not met, the items are assigned to the next lower dunning level and the check is carried out again.

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