SAP Note 11162 - Invoice split criteria in billing document .

Symptom

From a number of deliveries or sales orders more than one billing document is created.

Cause and prerequisites
The invoice split may have been carried out for the following reasons:

a) Explicit setting in Customizing
b) Different header partners
c) Different header fields
d) The billing date of all documents is equated in a data transfer routine (for example, by VBRK-FKDAT = SY-DATUM). This works when you are billing using VF01; a single billing document is generated. However, if you use VF04 or in case of a batch, several billing documents might be generated.

Solution

Please check the causes mentioned above:

1. Explicit setting in Customizing:
On the detail screen of the document flow table (TVCPF) in the entry field 'DATEN VBRK/VBRP' (as of Rel.2.2..: 'Data transfer') the routine '003' (single invoice) was entered and thus an invoice split was created.
2. Different header partners
The header partners in the billing documents created are not identical which causes an invoice split. With regard to partner processing, an invoice split also occurs if the entries in the partner table of the reference document and the billing document also differ only in one field (!) for the partner functions of the billing document header (in the standard system, these are SP, BP and PY).
3. Different header fields
The header fields in the billing documents created are not identical which causes an invoice split.
Attention: Not all header fields in the billing document are visible on the header detail screen of the billing document.
4. When using transaction VF04 or Billing (background) the date of the billing document (e.g. the current date) must be entered (In VF04: settings, default data. In VF06 or background: variant with parametrization) to avoid an unwanted split due to the billing date.
5. To avoid a split due to different header fields - except for the fields listed above - you have the option of using customer-specific data transport routines in the copying control of the relevant document types which initialize the corresponding fields. However, the information contained in these fields is then lost in the billing document.