According to the SAP S/4HANA Cloud, public edition Asset Management Learning Journey1, you can identify errors in a test plan by reviewing the detailed action log and reviewing failed process steps. The detailed action log is a report that shows the status and results of each action performed in the test plan. Failed process steps are steps that did not execute successfully or did not meet the expected outcome.

According to the SAP S/4HANA Cloud, public edition Learning Journey1, if you want to customize the business role for the maintenance technician, you should use the Create From Template option in the Maintain Business Roles application. The Maintain Business Roles application allows you to create, edit, copy, delete, or assign business roles in SAP S/4HANA Cloud. Business roles are roles that define what business tasks or functions a user can perform in SAP S/4HANA Cloud. The Create From Template option allows you to create a new business role based on an existing template role.

The available methods through which you can fill staging tables in the SAP HANA database of the target system are:
SAP HANA Smart Data Integration (SDI). This is a method that allows you to replicate data from various sources, such as SAP or non-SAP systems, into SAP HANA tables using adapters and pipelines.
XML templates. This is a method that allows you to fill staging tables with data from XML files that are generated from legacy systems or other sources.
Customer's ETL tools. This is a method that allows you to use your own extract, transform, and load (ETL) tools to fill staging tables with data from various sources. Reference: [SAP Help Portal - Data Migration Methods]