Merge columns in Paginated report

Hello rnola16,
Thank you for reaching out to the Microsoft Fabric Forum Community.

To answer your question the Report Builder doesn’t support merging datasets like a SQL JOIN or Power BI relationships.

You can use the Lookup() function to fetch values from other datasets, but that only works one-to-one (like a left join). If you have 10+ datasets, this means you'll need to:

• Use a master dataset that contains all distinct ID/Name keys (via UNION)
• Use Lookup() for each column you want to bring in from the respective dataset.

Alternatively, if you're able to, building a SQL View or Stored Procedure that handles the full outer join across your datasets will give you the cleanest and most scalable approach.

If this information is helpful, please “Accept as solution” and give a "kudos" to assist other community members in resolving similar issues more efficiently.
Thank you.