How To Fix DT270 - Field & contains at least one invalid character

DT270 - Overview

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 270

• Message text: Field & contains at least one invalid character

What causes this issue?

A field name containing characters which are not permitted, e.g.
because they only exist in certain languages, was used in a structure.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Replace the field name. The following characters are permitted in the
field name of structures:
ABCDEFGHIJKLMNOPQRSTUVWXYZ_1234567890$%/&#@!*()~?<>.{}| and SPACE

Error message extract from SAP system. Copyright SAP SE.

DT270 - Details

• The SAP error message DT270, which states that "Field & contains at least one invalid character," typically occurs when a user attempts to enter data into a field that does not conform to the expected format or contains characters that are not allowed. This can happen in various contexts, such as during data entry, file uploads, or when processing transactions.
  Causes:
  
  Invalid Characters: The input may contain special characters, spaces, or symbols that are not permitted in the specific field.
  Field Length Exceeded: The input might exceed the maximum length defined for that field.
  Incorrect Data Type: The data type of the input may not match the expected type (e.g., entering text in a numeric field).
  
  Configuration Issues: The field may have specific validation rules set up in the system that are not being met.
  
  Solutions:
  
  Check Input Data: Review the data being entered into the field. Ensure that it does not contain any invalid characters (e.g.,