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Define Screen
Layout at Document Level
For all external
purchasing documents and purchase requisitions,
you can specify the input attributes of fields by using field selection
keys.
A field selection key determines whether a
field is:
- A mandatory-entry field (input
required)
- An optional-entry field (input
possible)
- A display field (field displayed only, input
not possible)
When the screen is assembled in the dialog
transactions, for example, Change Purchase Order, certain field selection keys
are combined.
Combination of field selection keys
When the screen is assembled, the dialog
program combines up to six different field selection keys.
The successive combination of the field
selection keys listed below according to the link rules determines which input
characteristics the fields have in the document.
Two field selection keys are combined according
to the link schema in the table below. The following key is used:
| Link rules for field selection keys |
|
|
|
|
|
Field selection key 2 |
|
|
|
|
|
+ |
. |
* |
- |
| Field selection key 1 |
|
| + |
|
|
|
|
+ |
+ |
* |
- |
| . |
|
|
|
|
+ |
. |
* |
- |
| * |
|
|
|
|
* |
* |
* |
- |
| - |
|
|
|
|
- |
- |
- |
- |
|
Example
When you change a purchase order, the following
field selection keys are combined for the field Terms of
payment :
- In field selection key 1 (transaction), this
field is an optional field
- In field selection key 2 (activity type -
Change ACTV), this field is an optional field
- In field selection key 3 (purchasing document
type), this field is a display field
The combination of field selection keys 1 and 2
results in this field being an optional field.
The combination of an optional field with field
selection key 3, in which the field is a display field, results in a display
field.
Field selection
key
YOu should not delete the
field selection keys listed below, which the dialog program uses for control
purposes, otherwise the dialog may terminate during processing:
1.
Field selection key: transaction
The field selection key that corresponds to the transaction code: for example,
field selection key ME22 for the transaction "Change Purchase Order". For the
Enjoy Purchase Order transactions (creating, changing, displaying), there is
only field selection key ME21N.
2.
Field selection key: activity type
Is set from the activity type as follows:
You should note that
you can also add items in change mode (for example, transaction ME22). Field
selection key AKTH would be used for this
item.
3.
Field selection key: purchasing document type
The field selection key that you have assigned to the document type for the
purchasing document. For example, field selection key
UBF is assigned to document type UB, which is
used for stock transfer orders (within a company code). In this key, the
fields Price and Price
unit are suppressed.
4.
Field selection key: item category/document category
This is determined from the item and document categories as follows: The first
two characters consist of the letters 'PT', the third character of the item
category (internal representation), and the fourth of the document
category:
- B for purchase requisitions
- L for scheduling agreements
Accordingly, field
selection key PT3F would be used for a
subcontracting item in a purchase order.
- Field selection key: function
authorization/release status
- Purchasing documents: Used
for authorization control. If the user parameter EFB
(function authorizations in Purchasing) has been assigned and a field
selection key has been assigned to the relevant value, this field selection
key is used. Otherwise, field selection key $$$$ is
used if the user has insufficient authorization to display prices.
- Purchase requisitions: If the
purchase requisition is subject to arelease strategy and a field selection key
has been assigned to the current release indicator, this field selection key
is used.
- Field selection key: subitem/creation
indicator
- Purchasing documents: Is only
used in the case of subitems. The field selection key is put together in the
same way as for the item categories (field selection key 4), with the string
'UP', the subitem category, and the document type.
- Purchase requisitions: the
field selection key that is derived from the creation indicator in the
purchase requisition, that is, ESTV,
ESTF , or ESTD, is used in the case of
purchase requisitions generated from within Sales and Distribution, from a
production order, or through direct procurement.
5.
Field selection key: purchase requisition
In addition to the available field selection keys, you can define a field
selection key at function authorization level to influence the input
characteristics of fields in the Enjoy Purchase Requisition.
You can use this field selection key to set up groups of users that have
certain restrictions when editing purchase requisitions.
SAP
Recommendation
SAP recommends that you accept the settings
defined in the standard system. In this case, no action is required on your
part.
Activities
1. Check the
predefined input attributes.
2. Change the
field input control facility in accordance with your requirements
If you create your own field selection keys you
can enter these at the following points:
- In the step "Define document types" for the
relevant document:
- In user parameter EFB in the step
- Under the release indicator in the
step
Further
Notes
You cannot use the following fields as
mandatory fields: