Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!Get Fabric Certified for FREE during Fabric Data Days. Don't miss your chance! Request now
Hello,
After setting up incremental refresh based on a date range parameter filter applied to "Modified Date" of a SharePoint Online list, we receive the following error in our Premium Service Refresh History
The JSON DDL request failed with the following error: Failed to save modifications to the server. Error returned: 'Parameter substitution failed with following error: 'Neither mashup nor gateway connection string detected for incremental refresh parameter substitution'. Parameter substitution failed with following error: 'Neither mashup nor gateway connection string detected for incremental refresh parameter substitution'.
Any suggestions?
Thanks!
Solved! Go to Solution.
I get the same error message, and I am too trying to implement incremental reload (as per May release of Power BI).
Honestly, I believe this is a bug as the feature is still in preview.
Same error here using application insights source.
I get the same error message, and I am too trying to implement incremental reload (as per May release of Power BI).
Honestly, I believe this is a bug as the feature is still in preview.
Hello,
After setting up incremental refresh based on a date range parameter filter applied to "Modified Date" of a SharePoint Online list, we receive the following error in our Premium Service Refresh History
The JSON DDL request failed with the following error: Failed to save modifications to the server. Error returned: 'Parameter substitution failed with following error: 'Neither mashup nor gateway connection string detected for incremental refresh parameter substitution'. Parameter substitution failed with following error: 'Neither mashup nor gateway connection string detected for incremental refresh parameter substitution'.
Any suggestions?
Thanks!
HI @xfidelitydj,
Based on error message, it seems like there are something wrong with your datasource connection and parameters.
I'd like to suggest you to take a look at below link to know more about power bi service parameters:
Using the Power BI Service Parameters to change connection strings (To possibly change between Dev,
Regards,
Xiaoxin Sheng
Check out the November 2025 Power BI update to learn about new features.
Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!