# Report Designer and additional factors

**URL:** <https://forum.inductiveautomation.com/t/report-designer-and-additional-factors/9434>\
**Category:** Ignition\
**Created:** [December 12, 2014, 7:46am UTC](https://forum.inductiveautomation.com/t/report-designer-and-additional-factors/9434 "2014-12-12T07:46:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![accyroy](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/accyroy/32/3386_2.png) [@accyroy](https://forum.inductiveautomation.com/u/accyroy)\
**Post date:** [December 12, 2014, 7:46am UTC](https://forum.inductiveautomation.com/t/report-designer-and-additional-factors/9434/1 "2014-12-12T07:46:26Z")

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When I want to use an Additional factor from the MES module in the report designer, if the column name is a Delta then the report module doesn’t seem to know how to read the key. I think it is to do with having the delta in brackets in the key name. I’ve got around it by scripting the dataset into another table with a column name without brackets.

This is the key: @BMOil.BM1 Oil Consumption(Delta)@  
Results in in the report.

Am I doing something wrong or is this an issue?