Archive for the ‘MM’ Category
In transaction MM03, we notice some fields like product hierarchy doesn’t appear in some material types and only be displayed in materials with type finished goods. This kind of behavior is archived by field selection.
In this section, you carry out the following activities:
- Define whether a field is hidden or displayed, or whether an entry is mandatory or optional in material master maintenance by assigning the field to a field selection group
- Create and maintain field references
- Define industry sectors and industry-sector-specific field selection
- Define plant-specific field selection and screen selection
If you create a purchasing document, the system attempts to find a price for the material to be procured. The system always searches from “specific” to “general”. When you create a purchase order, the system searches for an info record for the vendor/material combination at purchasing information level/plant level. If there is no specific data for the purchasing organization/plant combination, it searches at purchasing organization level. If there is no data here either, you must enter the price manually.
Reservation can be created in two ways. One is through MD02 when running the MRP on an specific material, another ways is manually create the reservation using MB21.
The status of reservation varies in above two ways. If it is create using MD02, the status field(RESB-RSSTA) is ‘B’, otherwise, the value is ‘M’ which standards for manually created reservation. If you change the auto created reservation in MD04, the status will be changed to ‘M’.
The purpose of a reservation is to ensure that a material will be available when it is needed. It also serves to simplify and accelerate the goods issue process and prepare the tasks at the point of goods issue.It is also important that reservations are taken into account by Material Requirements Planning (MRP), which means that required materials are procured in time if they are out of stock.
Reservation can be created manually or it can be created by MRP logic. The field [RESB-RSSTA] indicate whether the reservation is created manually or automatically.
We can reate a new reservation using tcode MB21. After the reservation is created, we can see this reservation has been taken as an MRP element. Enter the tcode MD04:
