SAP Note 26715 - MD06: Qty data missing/incorrect in detailed header

Symptom:

1)
If you branch from the collective display of MRP lists (MD06) to an individual MRP list, then various quantity fields in the individual list are empty (for example, the maximum stock)

2)
In the detailed header and in the material overview of the MRP list (MD05 and MD06), the stock fields are displayed as zero although stocks do exist.

3)
In release 2.2, in the detailed header of the MRP list, the system includes safety stock in the available plant stock display. In release 3.0 (up to and including release 3.0E), this stock is no longer displayed in the detailed header of the MRP list.

Additional key words

MD04 MD07

Cause and prerequisites

1)
Program error. This problem has been solved for 3.0B. It only occurs in release 3.0 to 3.0A.

2)
The MRP list displays the situation at the time of the last planning run. This is also true for the stocks. The stock levels at this time however, are not available.
Therefore, from release 3.0B, they are hidden and can no longer be seen.

3)
In release 2.2 and from release 3.0F, available plant stock including safety stock is saved in field, MDKP-SUM01. If you want to display this stock in the detailed header of the MRP list from 3.0F, then you must create your own include screen for the detailed header that contains this data.
In Customizing, this include screen can then be included in the detailed header's screen sequence. Note 36087 describes the procedure for creating an individual screen for the detailed header.
Up to and including release 3.0F, however, you first have to have implemented the correction specified under 3) below.
In the standard system, from release 3.0F, the field MDKP-SUM01 exists on screen SAPLM61K/0103.

Note: available plant stock in release 2.2 and how it is saved in field MDKP-SUM01 is not identical to plant stock in the detailed header of the current stock/requirements list MD04 (field, MDSTA-SUM01). Up to and including release 3.0E, this plant stock represents the unrestricted-use stock in the plant. From release 3.0F, the system displays available stock in teh plant (depending on Customizing, use of QM). Up to release 3.0E, this can only be displayed via stock statistics. In all releases, however, the field also contains the stocks in the storage locations that are not included in MRP and is thus different from MDKP-SUM01.
Stock according to MDSTA-SUM01 us not saved in the MRP list. It can also not be determined later. Therefore, it can no longer be displayed with the correction specified under (2) below in the MRP list (MD05, MD06).

Solution
1)
Correction (see below)

2)
No general preliminary solution - from release 3.0B to 3.0D, the error only occurs if the field, MDSTA-SUM01 from screen SAPLM61K/0100 was copied to a detailed header to be displayed (see note 36087). See below for correction.

3)
Correction. Contained in the standard system from release 3.0F.
However, note that in all MRP lists created in releases previous to 3.0E before implementation of the correction, the field MDKP-SUM01 usually contains the incorrect value 0, that is also displayed incorrectly.