We use SAP Bex queries as data source of WebI reports. We use single sign on with SAP authentication, i.e. each user runs the reports with his SAP user id. WebI gets the timestamp as char field formatted as defined in the settings of the SAP BW user profile.
SAP BW user profile settings:
In a variable we convert the char string to a data type: date with the ToDate function: ToDate(<date field>;"dd.MM.yyyy hh:mm:ss a")
This we need because:
- We use date functions in WebI (e.g. DaysBetween)
- A report has to show a fix date format independent of the preferences (=SAP BW profile settings) of the user who is running the report.
Our problem: Different date formats are used in our SAP BW profiles.
We do not want to check all possible date formats with IsDate function. The date format that WebI ‘receives’ must be independent of the user profile settings. Here we need help. We are looking for a solution either on BO or BW side to fix the date format, or even better 
'receive' a timestamp in BO as data type: date.
Versions we use:
BO 4.0.8
BW 7.3.8
Thanks for your help.
Michaela