# Error Type : WorkbbookApplication is not defined

**URL:** <https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426>\
**Category:** Activities\
**Tags:** question, excel, activities\
**Created:** [March 1, 2022, 11:24am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426 "2022-03-01T11:24:10Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![fairymemay](https://avatars.discourse-cdn.com/v4/letter/f/ecd19e/32.png) [@fairymemay](https://forum.uipath.com/u/fairymemay)\
**Post date:** [March 1, 2022, 11:24am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426/1 "2022-03-01T11:24:10Z")

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Now I use Excel application scope as below.

 ![image](https://global.discourse-cdn.com/uipath/original/4X/d/9/0/d90691084aaff3d700d54f2f5642e7cee4492e73.png)

But show error.

Please guide me about it.

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**Author:** ![nikhil.girish](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/nikhil.girish/32/462341_2.png) [@nikhil.girish](https://forum.uipath.com/u/nikhil.girish)\
**Post date:** [March 1, 2022, 11:26am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426/2 "2022-03-01T11:26:13Z")

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Create Workbook variable for that **Excel Application Scope** activity then that error will go @fairymemay

and if created change the scope of variable to outer most

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**Author:** ![fairymemay](https://avatars.discourse-cdn.com/v4/letter/f/ecd19e/32.png) [@fairymemay](https://forum.uipath.com/u/fairymemay)\
**Post date:** [March 1, 2022, 11:27am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426/3 "2022-03-01T11:27:55Z")

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@nikhil.girish I Create Workbook variable for Excel Application Scope already → wb\_policy

 ![image](https://global.discourse-cdn.com/uipath/original/4X/4/a/1/4a13aa3f5fcfb9bc99ed0c365abafb173297b2fe.png)

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<div class="post-metadata">

**Author:** ![nikhil.girish](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/nikhil.girish/32/462341_2.png) [@nikhil.girish](https://forum.uipath.com/u/nikhil.girish)\
**Post date:** [March 1, 2022, 11:28am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426/4 "2022-03-01T11:28:55Z")

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@fairymemay so wts the error you are having now ?

can you create a new variable one more time

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<div class="post-metadata">

**Author:** ![fairymemay](https://avatars.discourse-cdn.com/v4/letter/f/ecd19e/32.png) [@fairymemay](https://forum.uipath.com/u/fairymemay)\
**Post date:** [March 1, 2022, 11:31am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426/5 "2022-03-01T11:31:25Z")

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@nikhil.girish create new —\> no error.

Thank you.

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**Author:** ![nikhil.girish](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/nikhil.girish/32/462341_2.png) [@nikhil.girish](https://forum.uipath.com/u/nikhil.girish)\
**Post date:** [March 1, 2022, 11:32am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426/6 "2022-03-01T11:32:49Z")

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Great @fairymemay

Happy Automation

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**Author:** ![system](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/system/32/182466_2.png) [@system](https://forum.uipath.com/u/system)\
**Post date:** [March 4, 2022, 11:33am UTC](https://forum.uipath.com/t/error-type-workbbookapplication-is-not-defined/403426/7 "2022-03-04T11:33:43Z")

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