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Modify Your Data Model LAST_N_MONTHS:10 ^ ERROR
Trailhead has an error on your verification script: https://trailhead.salesforce.com/projects/customize-an-org-to-support-a-new-business-unit/steps/modify-your-data-model?trailmix_creator_id=00550000006yKA3AAM&trailmix_id=business-specialist
There was an unhandled exception. Please reference ID: MPHSZHKQ. Error: Faraday::ClientError. Message: INVALID_FIELD: name = 'Edge Communications' and Support_Plan_Start_Date__c < LAST_N_MONTHS:10 ^ ERROR at Row:1:Column:63 No such column 'Support_Plan_Start_Date__c' on entity 'Account'. If you are attempting to use a custom field, be sure to append the '__c' after the custom field name. Please reference your WSDL or the describe call for the appropriate names.
It seems that you haven't created Support Plan Start Date on Account object.
- From Setup, click the Object Manager tab.
- Click Account, then click Fields & Relationships.
- At the top of the Fields & Relationships section, click New.
- Select the Date radio button, and click Next.
Field ValueField Label Support Plan Start Date
Description Start date of current support plan
Help Text When did the current support plan begin?
Please check the field accessibility for Support_Plan_Start_Date__c (Go to this field page and click 'View Field Accessibility'). Make sure that the field is 'editable' not 'hidden' for system administrator profile. If it is hidden, make the field editable by setting Visible checkbox to true for system admin profile and try checking the challenge again.
Let me know if it helps.
Thanks
Have you tried recreating the field? Because we have eliminated all possible causes for the error you are getting. You must be missing something.
I would suggest verifying each step of the unit carefully.
May be the prefix?
Can't seem to find how to remove the prefix
And the thing about namespace is you can't undo it. You will need a new trailhead playground or Dev org.