Generate automatically unique number for a field in a custom table

[Shalika]

I have a custom field where I have a field called 'number'. Now each time a new record is created in that field I want that the number field is automatically generated each time as N01, N02 and so on. And each time the number generated should be unique.

How can I do this.

[Dr Atul - LNG · Accepted solution]

Hi @Shalika 

Use Number maintenance