3679649 - "ChangeSet index 1 - ???HCP upload error: Invalid form schema, form field name must begin with a letter (A-Z or a-z) or an underscore (_)???;File could not be uploaded to PFS" - Onboarding 2.0

Upon trying to upload a form to Maintain Onboarding and Offboarding Document Templates, encounter the following error message:

"ChangeSet index 1 - ???HCP upload error: Invalid form schema, form field name must begin with a letter (A-Z or a-z) or an underscore (_)???;File could not be uploaded to PFS"

SuccessFactors Onboarding 2.0

1. Navigate to Maintain Onboarding and Offboarding Document Templates
2. Give any values for ID, Locale, Process Type, Name and Category
3. Upload the form
4. Encounter error message

In the configured form, there's a special character within the form's field mapping. If the form is opened within a PDF reader, it is visible that one or more fields are containing unsupported characters, such as "&". 

Make sure the field's name only contain letters and numbers, without any special characters. 

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