When attempting to use a report parameter in a DAX query against a Power BI dataset, I receive the following error:
"The query contains the 'RequestNoParam' parameter, which is not declared."
This occurs even though the parameter is correctly defined and bound in the dataset properties.
Steps to Reproduce:
Create a Power BI dataset and publish it to the Power BI Service.
In Power BI Report Builder:
Connect to the dataset.
Create a report parameter named RequestNoParam (type: Text).
Bind it to the dataset under Dataset Properties > Parameters.
Use the following DAX query:
DEFINE
VAR SelectedRequestNo = @RequestNoParam
EVALUATE
FILTER(
'After_Action_Oracle',
'After_Action_Oracle'[REQUEST_NO] = SelectedRequestNo
)
Attempt to save or run the query.
Expected Behavior:
The parameter should be recognized and passed into the DAX query, allowing dynamic filtering.
Actual Behavior:
The query fails to save or execute, with the error:
"The query contains the 'RequestNoParam' parameter, which is not declared."
Troubleshooting Done:
Verified parameter is bound in dataset properties.
Confirmed parameter type matches column type.
Tried using PARAMETERS(@RequestNoParam) syntax.
Recreated the parameter and dataset multiple times.
Hardcoded values work fine in the query.
Tried using TREATAS, calculated tables, and dummy references — all failed.
Request:
Please confirm whether this is a known issue or a regression in the July 2025 build of Power BI Report Builder. If not, please advise on a workaround or fix.
