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Product and Topic Expert
Product and Topic Expert

Update: Select on table RESB was changed on 27.05.2015 to avoid a memory short dump

One of the most frequent issues described by customers is the performance of the MRP execution.

With some simple changes on the MRP parameters and customizing we can improve drastically the MRP performance.

In order to automate the analyzis of such parameters and customizing activities I wrote a small ABAP report to carry out these checks.

The following checks are carried out by this report:

- Size of table RESB

- Bom buffering is active on customizing

- Aggregation of MRP lists is active on customizing

- Planning modes 2 or 3 were used

- Processing key NEUPL is used in combination with planning mode 2

- Scheduling horizon

- Parallel processing

- Planning file entries were converted to MRP area level

If you are interested to run this report on your system, you can find the source code on the WIKI below:

MRP Performance Analyzer - ERP Manufacturing (PP) - SCN Wiki

Below there are screenshots of this report and the results of the check.

1 - Selection screen:

2 - Results screen:

As you can observe from this screenshot, the report shows which settings can cause performance issue, describes the problem, explains how to solve it and points to a note where you can find more information.

This is still a beta version of the report, however, this report does not delete or change anything on your system, therefore, you can safely implement it on your system.

Your feedback about this report is highly appreciated. If you can remember of any additional checks that can be carried out to improve the MRP performance, feel free to leave your suggestion on the blog comments.