In this step, you define the access sequences for message control.

The access sequence is a search strategy, with which the SAP System searches for valid message records.

Example

Requirements

Standard settings

Recommendation

• Use the access sequences provided in the standard system.
• If you wish to create a new access sequence, you should copy a similar, already-existing one and make any necessary changes. The key for your own access sequences should begin with Y or Z because SAP keeps these name slots free for customers.

Activities

To define your own access sequence, proceed as follows:

• Access sequences

  Enter an alphanumeric key of up to 4 characters for the access sequence, together with a descriptive text.

• Accesses
• Enter a sequential number for the access within the access sequence.
• Specify the condition table that contains the key fields of the message records.
• If necessary, enter a requirement for message determination.
• Fields

  Here you specify with which data from the communication structure the condition table is read.

  Link here the desired fields of the communication structure with the relevant fields of the condition table.

Note
When defining the access sequences, ensure that every possible combination of messages is provided for. If a purchasing document does not fulfill the conditions for message determination, it cannot be outputted.

Further notes