SAP Message C1306 - Exponents must be numeric or in format && or SS

Diagnosis
When defining the exponent, you entered an incorrect power.

Procedure
You have three options for defining the exponent:
numerically, by defining a fixed exponent
__ , if the exponent is to be set automatically
SS , if the exponent is to be set automatically in scientific format(steps of 3)
Enter the exponent in one of these formats.