Data Insight User Guides
Technical Table Exclusion – End-to-End Step-by-Step User Guide
This locked guide explains how to use the DDR Technical Table Exclusion utility to prevent selected technical, system, logging, temporary, or customer-specific tables from being replicated into the target system. It supports cleaner refresh cycles, protects target-specific configuration, reduces unnecessary data volume, and improves the control of non-production SAP environments.
Purpose of Technical Table Exclusion
Technical Table Exclusion is used to define tables that DDR should not copy during replication or refresh activity. In a SAP landscape, not every table is suitable for copying from source to target. Some tables contain technical runtime data, temporary processing data, logs, queues, monitoring records, target-specific settings, or local operational data that should remain untouched in the target system.
By maintaining these tables centrally in DDR, administrators can improve refresh quality and reduce the risk of copying unwanted technical information. This helps avoid unnecessary table volume, protects target-specific data, and supports cleaner non-production environments for testing, support, training, and project delivery.
Key point: Technical Table Exclusion is not only for SAP standard technical tables. It can also be used for custom Z tables, Y tables, namespace tables, customer control tables, integration tables, or any table that should be avoided during replication.
Access Utilities from the DDR Central Console
From the DDR Central Console, select Utilities from the left-hand navigation menu. Utilities contains shared DDR configuration and control functions such as Pattern, Business Objects, Exclusion, Number Range, and Housekeeping.
Technical Table Exclusion is maintained from Utilities because it is a central reusable configuration. Once maintained, the exclusion list can support controlled refresh design and reduce the chance of unwanted technical data being copied into a target system.
Open Exclusion – Technical Tables
After opening Utilities, select Exclusion – Technical tables from the top navigation bar. This opens the Technical Table Exclusion workspace where existing exclusions are displayed and maintained.
The screen lists the table names that have already been added to the exclusion configuration. These tables should be reviewed before making changes, because removing an entry may allow the table to be copied again during a future refresh.
Add a Table to the Technical Exclusion List
To add a new table to the exclusion list, click Add. Enter the required table name in the table input field and then click Save. Once saved, the table becomes part of the technical exclusion list and can be excluded from DDR replication processing where the exclusion rule is applied.
The table entered can be a SAP technical table, a system control table, a logging table, a queue table, a temporary table, or a customer-specific table that should not be copied. This gives DDR administrators the flexibility to protect both standard and custom technical data.
- Click Add.
- Enter the table name that should be excluded.
- Click Save to store the entry.
- Review the list again to confirm the table has been added correctly.
Why Technical Table Exclusion Is Important
Technical table exclusion is important because SAP systems contain many tables that are not always suitable for refresh replication. Some are system-generated, some are target-specific, and some may contain technical state information that should not be moved between clients or systems.
Prevents source technical records from overwriting values that belong only to the target environment.
Helps ensure the target remains clean, stable, and focused on the data required for testing or support.
Avoids copying logs, queues, temporary records, and other tables that increase runtime without business value.
Examples of Tables That May Be Excluded
| Table Category | Why It May Be Excluded | Typical Review Question |
|---|---|---|
| Technical runtime tables | They may contain temporary or system-generated runtime records that are only valid in one system. | Will copying this table create incorrect runtime state in the target? |
| Log and monitoring tables | They often increase data volume and may not provide value for testing or business validation. | Does the target need old source-side logs? |
| Queue and integration tables | They may contain source-specific integration states, queues, or pending messages. | Could this restart or confuse target-side integrations? |
| Target-specific control tables | They may hold local target configuration or operational values that must not be overwritten. | Is this table controlled locally in the target system? |
| Custom Z, Y, or namespace tables | Customer-specific technical tables may need to remain local or outside the replication scope. | Is this custom table business data or technical control data? |
Important Control and Review Rules
Technical Table Exclusion should be managed carefully. Excluding the wrong table can lead to incomplete replicated data. Not excluding the right table can result in unwanted technical data being copied to the target system.
Important: Only authorised DDR administrators should maintain this list. Every table added should have a clear reason, owner, and review status.
- Do not exclude core master data or transactional tables unless there is a clear approved reason.
- Review table names carefully before saving.
- Confirm whether the table is technical, operational, temporary, or business-critical.
- Document customer-specific exclusions for future refresh governance.
- Review the list before major client refreshes, project test cycles, and production support refreshes.
- Validate changes in a non-production environment before relying on them for wider refresh processes.
Summary
The DDR Technical Table Exclusion utility gives administrators a controlled way to stop technical or unwanted tables from being replicated. It helps protect the target system, reduce unnecessary data volume, improve refresh consistency, and strengthen governance around SAP non-production refresh cycles.
The standard process is simple: access Utilities, open Exclusion – Technical tables, review the existing list, click Add, enter the table name, and save the exclusion. The most important part is governance: each exclusion must be reviewed and understood before it is applied.