External suppliers are fulfilling an excel sheets after interventions on sites. The excel files are integrated in SAP through a webdynpro application. Then the files are validated by the internal requester and financial controllers in SAP to create a service entry sheet. Then the data is integrated in BW to produce KPI for each type of intervention.
There are six types of intervention:
Main documentation: https://drive.google.com/open?id=0B-KST39ThPrUaUFJU2w0bE1tOGM
Technical documentation : https://drive.google.com/open?id=0B-KST39ThPrUeUVDb0FRNVNQckU
List of contacts:
Raphaël BERT (SBS Information Services - I&P) : IT Project Leader. Responsible of the SAP processes & BW reporting.
Around 200 users, only on France sites. Around 30 suppliers for the files upload, the other are approbators from maintenance teams on site.

Technical documentation for dataflows : https://drive.google.com/open?id=0B-KST39ThPrUeUVDb0FRNVNQckU
Below objects should be loaded previously before load GTBU in the following sequence:

The files generate data for BW in the export tab. Indicators are registered in the files with a key. After confirmation of the file, a night job (on WP1: PM_T00400_EU; on PF1: ZZI_020_TA_GTBU_EXTRAC_BW) for program ZWPMT00400 add data in tables ZWPMT007 and ZWPMT019 for the extraction. In BW, the key relate to the KF.
The application is based on three datasources based on SAP tables:
Main dimensions for the data:
C_EQUNR Equipment number
C_LBLNI Entry sheet number
C_SEDAT Service entry sheet creation date
C_SCITKEY Equipment item key