We don’t have TN. we are getting some products numbers. we need to check that number is valid for the target system. I have Target system list of only required product numbers. How can I check from the source system number is valid for the target system.
source system product numbers like this (1, 100, 1000,70000, 100000…)
target system needs all as 18 characters(this we can do with leading zeros, is this only one way to check a to z lengths or is there any simple way to check and pass the 18 characters).