Cannot read property 'toLowerCase' of null

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Posted on by MaxDuchy

Hi,

So I'm getting an error when going onto Lead forms, which I believe is related to a required field not being filled in, as I have found one such field, filled it in, and gotten rid of the error, however it keeps returning.

The field I filled in was a Tab name field.

Error details:

Session Id: 4a1940a3-5612-4805-9099-722ab1bfc836
Activity Id: feedc0de-aaaa-bbbb-cccc-1234567890ab
Timestamp: Tue Oct 29 2019 13:31:52 GMT+0000 (Greenwich Mean Time)

Cannot read property 'toLowerCase' of null

TypeError: Cannot read property 'toLowerCase' of null at [customername].crm11.dynamics.com/.../app.js at Array.filter (<anonymous>) at [customername].crm11.dynamics.com/.../app.js at Array.forEach (<anonymous>) at Object.execute ([customername].crm11.dynamics.com/.../app.js at [customername].crm11.dynamics.com/.../app.js at new Promise (<anonymous>) at C._executeAsyncAction ([customername].crm11.dynamics.com/.../app.js at C._executeAsync ([customername].crm11.dynamics.com/.../app.js at C.executeAction (https://[customername].crm11.dynamics.com/uclient/scripts/app.js?v=1.3.2399-191014-235933:484:177)

Thanks for the help

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Answers (1)

Joana Pinto 740 on at

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Hi,

Have you tried to put some breakpoints on your script, so see really where the error is and the values on your variables/objects?

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MaxDuchy 15 on at

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Hi Joana,

I'm not using a script, simply editing a form using the built in editor.

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Joana Pinto 740 on at

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It's a custom or OOB form?

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MaxDuchy 15 on at

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It's the OOB generated Main form with custom fields added

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Joana Pinto 740 on at

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Removing those custom fields, publishing the solution and then putting back the fields doesn't work? This seems some little bug from the system itself... I would recommend deleting the form but since it's a OOB form...

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MaxDuchy 15 on at

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Just to update I deleted the custom form, leaving me with only the undeletable forms I assume are OOBs and the issue persists.

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MaxDuchy 15 on at

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Turns out the OOB Contact and Address concatenated fields were at fault, removing them from the form and replacing them with custom field versions fixed this issue for me

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