Hi @chhe ,
Do you want to append a 'h' char after a number value, and keep the field as a number field?
Based on the needs that you mentioned, I afraid that there is no way to achieve your needs. I agree with @timl 's solution almost. If you want to append a 'h' char after a number value, please use the following formula:
Text(514; "[$-de-DE] ##") & "h"
If you want to multiply this TextInput value with the value from another TextInput, please take a try with the following formula:
Value(Substitute(TextInput1.Text, "h", "")) * Value(TextInput2.Text)
Note: The TextInput1 represents the Text Input box, where you want to add 'h' unit. The TextInput2 represents another Text Input box, whose value you want to multiply with the TextInput1 value.
Best regards,