topic Re: Object Level Security that is measure dependent in DAX Commands and Tips

Object Level Security that is measure dependent

JKarrick — Fri, 01 Dec 2023 16:12:31 GMT

In a tabular model for analysis services, the lowest level of a shared product dimension needs to be hidden from a a group of users if they select inventory measures, but they can see all product columns when selecting sales measures. There are about 20 product columns and only two need to be hidden for inventory measures. Is it possible to combine object level security with DAX to accomplish this?

Re: Object Level Security that is measure dependent

lbendlin — Sun, 03 Dec 2023 22:57:30 GMT

Use a shadow/hidden table instead of OLS.

Re: Object Level Security that is measure dependent

JKarrick — Mon, 04 Dec 2023 18:31:22 GMT

I appreciate the suggestion of a shadow/hidden table, but please provide more details on how to implement. I'm also providing more specifics about what the model design and desired reporting output for two different user groups.

All Measures (calculated table for all explicit measures)

Invoiced Tons comes from Invoice fact table
Inventory Tons comes from Inventory fact table

Product dimension (many attributes but limiting to 4 for this example)

Product category
Product subcategory
Reporting grade
Material number
- This column should be visible for Sales users for Invoiced Tons but be hidden for Inventory Tons
- All other users can see this column with Invoiced and Inventory Tons.

Table relationships:

Invoice material number = Product material number
Inventory material number = Product material number

Example #1 for Sales user to see the first three Product fields:

Example #2 - Sales user should not see Material Number for Inventory Tons. Ideally the gray portion would be blank so the same report works for all users instead of completely hidden/access denied that would create an error on the report.

Example #3 - Non-Sales user can see all product levels:

Thanks for any suggestions!

Re: Object Level Security that is measure dependent

lbendlin — Mon, 04 Dec 2023 20:08:56 GMT

use two copies of the Product Dimension table. Join the one with the visible materials column to the invoices and the one with then hidden materials column to the inventory

Re: Object Level Security that is measure dependent

JKarrick — Mon, 04 Dec 2023 20:24:50 GMT

If inventory is joined to the version of the Product dimension with the material column hidden, wouldn't that hide material from all users? Most users should see inventory by material. It's only sales reps that need to have material hidden.

Re: Object Level Security that is measure dependent

lbendlin — Mon, 04 Dec 2023 20:36:11 GMT

If you have sufficiently diverse audiences then you better create separate reports.

Re: Object Level Security that is measure dependent

JKarrick — Mon, 04 Dec 2023 21:42:32 GMT

I'm using Tabular Editor for an Analysis Services cube that is accessed by the entire company in Excel for ad-hoc and some PBI reports. This requirement seems difficult to implement so was hoping some advanced DAX with OLS might make it possible.

Re: Object Level Security that is measure dependent

lbendlin — Mon, 04 Dec 2023 22:03:10 GMT

I'm using Tabular Editor for an Analysis Services cube that is accessed by the entire company in Excel for ad-hoc and some PBI reports.

Would have been nice if you had led with that.

In that case I think you need two cubes.

Re: Object Level Security that is measure dependent

JKarrick — Thu, 07 Dec 2023 15:44:11 GMT

My original post started with "In a tabular model for analysis services..."

Re: Object Level Security that is measure dependent

lbendlin — Thu, 07 Dec 2023 18:44:56 GMT

Yes, it did. I misread it as referring to a Power BI ~~dataset~~ semantic model.