The mask you entered in Format Mask is not a valid mask. The possible causes of this error include the following:
Case 1: The string that you entered as a mask contained invalid characters.
Case 2: You entered a number format mask for a field with Datatype of Character.
Action:
You can take the following actions to correct this error:
If Case 1: Select a value from the list of values. For more information, see Specifying number format masks or Specifying date and time format masks.
If Case 2: Change the Datatype of the field to be Number, if possible. If the field is supposed to be Character Datatype and cannot be changed, you cannot have a format mask for it.
Note: For help on other error messages, see Finding error message help.
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