Trace Log (SAP Library - Working with Parameter Effectivity)

Trace Log

Use

The trace log gives you information on the conditions under which the change statuses of the objects are effective. This information is particularly helpful for complex changes, so you can follow why the system selects a certain change status for an object (such as a BOM item).

Prerequisites

The following requirements must be met before you can display a trace log:

You have made the changes with reference to a change number.

You must have set the Assign effect. vals indicator in the material master record (Basic data 1 view) for the material BOM header material.

You have activated the trace log (Logistics ® Central functions ® Engineering change management ® Environment ® Parameter effectivity ® Trace on/off). This setting is saved user-specifically.

Features

When you have assigned values to the effectivity parameters the system determines the effective change statuses and displays the trace log. From the trace log you can discover why the system selected which change statuses.

The trace log contains the following information:

Settings in Customizing for Engineering Change Management

The trace log tells you whether the following control data indicators are set:

Parameter effectivity active

Release active

Rank active

Depending on which indicator is set, the appropriate data is displayed in the list of change numbers. For example, if the Rank active indicator is set, the list contains the Rank field.

Assigning Values to the Parameters

The system lists all the effectivity parameters that there are values for in the present processing situation.

Values can be assigned in the following way:

User entry in the Assign Parameter Effectivity Values dialog box

Transfer of maintenance values from the change master record

List of Change Numbers

The system lists all the change numbers with parameter effectivity that the object has been processed using.

You see the following information for each change number:

Release key (RL)
Effectivity type (Efftype)
Priority (Pr)
Rank
Internal counter (AEDIF)
Color coded change number indicator

The choice of color shows, for example, whether a change number is effective and has been selected on the basis of the release key. The system also takes into account whether you have set a change number as valid or invalid in the Override Variant with Change Numbers dialog box.

If you want to display the legend for the color code, click This graphic is explained in the accompanying text .

Effectivity data

This function displays the effectivity criteria that are defined in a change master record with parameter effectivity, which means the single values or the lower and upper limit values

If you want to display the effectivity data, click This graphic is explained in the accompanying text .

Multi-Level Trace Log

You see a multi-level log in the following situation:

The system determines the effective change statuses for a multi-level object (such as a multi-level BOM).

On the top level the system has selected at least one change status for an object, which has subordinate objects.
At least one of the subordinate objects for the selected object was also processed with reference to change master records with parameter effectivity.

When you click This graphic is explained in the accompanying text the system displays the evaluation list for the next assembly.

See also:

Example: Selection in a Multi-Level BOM