How To Fix CNV_10020306 - Zielkardinalität N ist bei Intervallen nicht erlaubt

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 306

• Message text: Zielkardinalität N ist bei Intervallen nicht erlaubt

Was verursacht dieses Problem?

The system found that the source determination value &V1& has target
determinaton value &V2& as well as target determination value &V3&
assigned. This corresponds to a target cardinality of N, which is not
allowed for intervals (for technical reasons).

Systemantwort

Creation of intervals is not possible for this path.
&NOTE&
The following example shows why a target cardinality of N is not
allowed.

Wie kann das passieren?

Purchasing organizations 0001 to 0010 are assigned to plant 0001.
Purchasing organizations 0002 to 0006 are additionally assigned to plant
0002, and purchasing organizations 0007 to 0009 are additionally
assigned to plant 0003. The interval table would then look as follows:
DTVAL_S_HIGH,,DTVAL_S_LOW,,DTVAL_T
0006 ,,0002 ,,0002
0009 ,,0007 ,,0003
0010 ,,0001 ,,0001
To find the related plants for purchasing organization 0005, the program
would have to read records 1 and 3. However another relevant record
might occur at any other place in the table, which means that the table
must be processed completely every time it is accessed, and which in
turn would result in serious performance issues. If, however, there is
exactly one target determination value, only a single access is
required.

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