>>>Hi,
>>>
>>>I have a code in the program that converts a string of numbers (not a number but a string of numbers) according to the second parameter of Transform(). For example,
>>>

>>>nNumber = 67849
>>>cMask = 'M XXXXXXXXXX'
>>>cNumber = transform( alltrim(str(nNumber)) + "@R" + cMask)
>>>*-- the result, cNumber, should be 'M 67849'
>>>

>>>
>>>The above works unless the cMask is 'A XXXXXXXXXX'
>>>
>>>Why does the 'A' make a difference?
>>>
>>>TIA
>>
>>Hi,
>>
>>following works for me:
>>
>>

>>lcMask = "9 9999"
>>lnNumber =67849
>>? transform( m.lnNumber , "@R "+ m.lcMask)
>>

>>Regards,
>>Koen
>
>Thank you, Koen. The reason my code didn't work is because I have a letter (specifically 'A') in my lcMask.

Because "A" is valid mask letter:
Check InputMask in HELP.
The same is with letter "W"